--- Good morning, Doctor Brown’s office.
--- Hello, this is Johnson. Could you please tell Doctor Brown I ? My car won’t start.
| A．have been delayed | B．am delayed |
| C．will be delayed, | D．was delayed |
We should try our best to keep our environment from______.
| A．polluting | B．polluted | C．being polluted | D．having polluted |
--- Have you moved into your new house？
---- No. It _________at present.
| A．will be decorated | B．is being decorated | C．is decorating | D．was decorated |
---- 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 |