—The police have caught the murderer.
—Yes, and he admitted ________ his boss on a rainy night seven years ago.
| A．to kill | B．to have killed | C．having killed | D．have been killing |
---- Is everything clear now?
----Yes, the thief has admitted _________.
| A．to steal the car | B．stolen the car | C．steals the car | D．stealing the car |
Peter has many friends，______can help him .
| A．few of which | B．few of whom | C．few of that | D．few of them |
He is always helping people without expecting anything________.
| A．in charge | B．in turn | C．in trouble | D．in return |
------Shall I give you a ride as you live so far away?
------Thank you，________.
| A．it couldn’t be better | B．of course you can | C．if you like | D．it’s up to you |
There might be life on other planets, but so far scientists haven't found enough ________ to prove it.
| A．evidence | B．relic | C．mystery | D．reception |