The ______ look on his face suggested that he ______ that he would fail in the Maths test．
| A．surprising; wouldn’t expect | B．surprising; hadn’t expected |
| C．surprised; hadn’t expected | D．surprised; shouldn’t expect |
It will be about 100 days __________the College Enhance Examination comes.
| A．when | B．as | C．before | D．since |
The haze or smog was so serious that the winter running _________.Some students complained as they ran
| A．could have cancelled | B．should have cancelled |
| C．must have been cancelled | D．ought to have been cancelled |
—What about __________ lecture yesterday?
—Well，__________ most boring one indeed.
| A．／；the | B．the；a | C．the; the | D．／；a |
The doctor must be _______ 24 hours a day, 7 days a week in the boarding school.
| A．on call | B．by hand | C．in sight | D．on spot |
What was considered impolite years ago has become ________now.
| A．accessible | B．adjustable | C．unbelievable | D．acceptable |