So difficult ____that no one could ___ a good solution to it.
| A．was the problem; come up with |
| B．the problem was; come up with |
| C．the problem was; put up with |
| D．was the problem; put up with |
With the worldwide oil crisis, the price of oil has been raised ______ 15%.
| A．about | B．with | C．of | D．by |
Part of the work is to be finished today and ______ by this weekend.
| A．another | B．the others | C．the rest | D．the other |
It is no longer a problem _______ the poor children in this district can go to school.
| A．that | B．whether | C．so | D．because |
We need a more capable leader, ______ with strong will and as well as good humour.
| A．who | B．that | C．one | D．which |
"______ the friendship between our two people last forever!", and with this sincere hope, the president concluded his speech.
| A．Could | B．May | C．Would | D．Must |