The expert offered us another piece of advice , ___ of great help to our program.
| A．I think it is | B．I think which is | C．which I think it is | D．which I think is |
She had to lie to the company and ______ a man in order to get a job, ______ rather strange.
| A．pretending as, looked | B．pretended to be, looking |
| C．pretending as, was looked | D．pretended to be, looked |
The little girl couldn’t ________ the problem. She wasn’t ________ clever.
| A．get through, very | B．make out, much |
| C．work out, that | D．get across, so |
---Mike must have known that.
---No, he ________. How _______ he?
| A．mustn’t, must | B．may not, might | C．couldn’t, can | D．needn’t, need |
All the essays _____________, the teacher sent the students home.
| A．having written and collected | B．having been written and collected |
| C．being written and collected | D．to be written and collected |
---I was trying to carry out the plan, but I failed.
---Well, you _________, for we were uncertain it would do ________.
| A．needn’t do that, in fact | B．needn’t have done, in effect |
| C．needn’t have, in practice | D．needn’t, in time |