Choose the appropriate verb forms to complete the sentences. 1. He said he (can't/couldn't) couldn't afford to buy that expensive watch. 2.1 am sure John (will/would) in biology.…
Choose the appropriate verb forms to complete the sentences. 1. He said he (can't/couldn't) couldn't afford to buy that expensive watch. 2.1 am sure John (will/would) in biology. get a satisfactory mark 3. It's no use (going/to go) prove that they are not to blame. there. You won't be able to 4. I (has always been looking/am always looking) forward to (participating/participate) in such concerts. 5. Christopher Columbus (was/has been) known explorer. a well- 6. How (does this mechanism usually function/is this mechanism usually functioning) 7. Do you know why Silvia (has refused/is refused). to apologize? 8. I will be very much surprised if Mr Langley (will succeed/suc- ceeds) in finishing this job. 9. If Boris (prevents/will prevent) departure, we will be really happy. Uncle Jacob's 10. Sarah (has been used/has been using) these devices since
Here are the appropriate verb forms to complete the sentences:
He said he couldn't afford to buy that expensive watch.
I am sure John will get a satisfactory mark in biology.
It's no use going there. You won't be able to prove that they are not to blame.
I have always been looking forward to participating in such concerts.
Christopher Columbus was a well-known explorer.
How does this mechanism usually function?
Do you know why Silvia has refused to apologize?
I will be very much surprised if Mr. Langley succeeds in finishing this job.
If Boris prevents Uncle Jacob's departure, we will be really happy.
Sarah has been using these devices since... (The sentence seems incomplete; you may want to add a time frame after "since.")
