Exercise 1: Group A Vocabulary
Exercise 1: Group A Vocabulary
Exercise 1: Group A Vocabulary
5 theory: A theory is an idea that explains something, but 9 have been stolen: This is the correct passive structure.
has not yet been proved.
10 not being taken: This is the correct passive structure.
Exercise 3
1 without: If you do without something, you manage without Exercise 5
it. 1 are said to be: This is the correct passive form. We use
there is/are + passive verb + to infinitive.
2 out: If you figure something out, you manage to
understand it.
2 is thought to be planning: This is the correct passive 2 upload: To upload something means to put it onto the
form. Both verbs relate to the present time. Internet.
3 is expected to decrease: This is the correct passive form. 3 share: To share a link with someone means to send it to
Both verbs relate to the present or future time. them so that they can look at it.
4 is generally understood that: This is the correct passive 4 expense: If you do something at the expense of
form. The verb, understand, relates to the present, so something else, the other thing suffers because of what
we use a present passive form. We use It + passive you are doing.
verb + that.
5 fingertips: If something is at your fingertips, you have
5 is known to be: This is the correct passive form. Both easy access to it.
verbs relate to the present time.
6 track: If you lose track of time, you forget about what time
6 are believed to be: This is the correct passive form. We it is because you are busy.
use there is/are + passive verb + to infinitive.
7 post: If you post a comment, you add it to a website.
7 is thought to have started: This is the correct passive
structure. The verb think relates to the present, so we 8 insomnia: Insomnia is a medical condition which means
use a present passive, and the verb start relates to the that you cannot get to sleep at night.
past, so we use to + have + past participle.
9 joint: Joint pain is pain in the parts of your body where
8 could be argued that: This is the correct passive form. bones meet, for example in your hips, knees or ankles.
After a modal verb, we use be + past participle in the
Passive. 10 pressure: High blood pressure is a medical condition
that affects the way blood travels around your body.
9 is believed to have invented: This is the correct passive
structure. The verb believe relates to the present, so we
use a present passive, and the verb invent relates to the
past, so we use to + have + past participle. Exercise 2
1 track: If a device tracks something, it notices it and keeps
10 is thought to have been discovered by: This is the a record of it as it changes.
correct passive structure. The verb think relates to the
present, so we use a present passive, and the passive 2 knowledge: If you do something safe in the knowledge of
verb be discovered relates to the past, so we use to + something, you do it feeling relaxed because you know
have + been + past participle. something that reassures you.
Exercise 3
1 log: If you log on, you turn your computer on and start
using it.
5 on: To pull the plug on something means to stop using it 4 is thought to be:This is the correct passive form. We use
or stop making it available for people. there is/are + passive verb + to infinitive.
Exercise 5
1 is said that: This is the correct passive form. The verb,
say, relates to the present, so we use a present passive
form. We use It + passive verb + that.