. It _____ Mary and Tom that often helped me at school.
| A．was | B．were | C．are | D．is |
He is a poorly learned man, but he acts as though he _____．
| A．is | B．were | C．should be | D．seems like |
—I don’t suppose Jimmy could have done well in the mid-term exam last week,______?
`--- ______ he almost failed in the exam．
| A．had he; Yes | B．did he ; No | C．do I ; Yes | D．could I ; No |
It is strange that such a thing ______ in your school．
| A．will happen | B．happens | C．should happen | D．happened |
As is often pointed out, knowledge is a two-edged weapon which can be used ________ for good or evil．
| A．similarly | B．properly | C．equally | D．widely |
Urban crowdedness would be greatly relieved if fares ________ on public transport were more reasonable．
A．offere d |
B．charged | C．paid | D．spent |