I don’t suppose Jim could have done so well in yesterday’s exam , ____________?
A．do I B．did he C．has he D．could he
Schools across China are expected to hire 50,000 college graduates this year as short-term teachers, almost three times the number hired last year, ____ reduce unemployment pressures.
A．helping B．to have helped C．to help D．having helped
It’s quite some time ______ our teammate Wang Qiang got injured in the foot, but we firmly believe it won’t be long _________ he recovers from it.
A．since; before B．before; since
C．after; when D．when; after
----Jack can’t concentrate on his lessons recently.
----Yes, that might _____ his low score in the last test.
A．stand for B．apply for C．account for D．call for
There were two boys in the lab, _______ did the experiment successfully.
A．the clever of whom B．the cleverer of whom
C．the cleverer of them D．the more clever of them
Every boy and every girl as well as some teachers who_____ to visit the museum______ asked to be at the school gate before 6 :00 in the morning.
A．are ; are B．is; is C．is ;are D．are ;is
