He didn’t make ________ clear when and where the meeting would be held.
| A．this | B．that | C．it | D．these |
They boy said ________ couldn’t he work out the problem but his teacher didn’t know how to do it.
| A．though | B．never | C．hardly | D．not only |
— Why weren't you at the meeting?
— I ________ for a long distance call from my sister in America.
| A．was waited | B．was waiting |
| C．has waited | D．have been waiting |
We have done things we ought not to have done and ________ undone things we ought to have done.
| A．left | B．leave |
| C．will leave | D．leaving |
The two ladies are ________ the same age, but there seems to be ten years ________ them.
| A．at, between | B．about, among |
| C．as, among | D．of, between |
--- I stayed at a hotel while in New York .
--- Oh, did you? You ＿＿＿＿ with Barbara．
| A．could have stayed | B．could stay | C．would stay | D．must have stayed |