. Jack almost fell off the cliff, but managed to _____ until help came.
| A．keep on | B．catch on | C．count on | D．hang on |
The young man has got great ______ and will surely become successful in the near future．
| A．access | B．sympathy | C．potential | D．justice |
The government has taken some measures to solve the problem of unemployment, but it
may be some time ______ the situation becomes better.
| A．before | B．since | C．after | D．unless |
Water, which seems so simple and common, is ______ makes life possible.
| A．which | B．what | C．that | D．how |
Let’s go to ______ cinema—that will take your mind off the problem for while.
| A．the; the | B．the; a | C．a; the | D．a; a |
With a lot of difficult problems________, the manager felt worried all the time.
| A．settled | B．to be settled | C．settling | D．to settle |