—Quite a lot of students failed in the math exam．
—Exactly．It is ____ their abilities．
| A．within | B．over | C．against | D．beyond |
When the traveler felt tired, he stopped ___.
| A．drink | B．to drink | C．drinking | D．drunk |
She felt ___ Henry were a member of her own family.
| A．so long as | B．as soon as | C．as | D．as if |
Is it only recently ___ he has had a family himself?
| A．when | B．if | C．that | D．which |
The young man in Liaoning decided to go round China ___ bike.
| A．riding | B．on | C．on a | D．by a |
Machines made today are much better than __ of 1950s.
A. that B, those C. the ones D. which