The chairman ________ hold office for five years according to the constitution.
| A．might | B．could |
| C．need | D．shall |
He can __________ his breath under the water for five minutes.
| A．keep |
| B．hold |
| C．take |
| D．make |
After several sleepless nights, Mr Johnson __________ a perfect solution to the financial problems of his company.
| A．kept up with |
| B．put up with |
| C．came up with |
| D．ended up with |
The solution __________ this problem is acceptable. So I am __________ it.
| A．to; for |
| B．of; against |
| C．to; on |
| D．on; for |
Only then did she realise how much damage __________.
| A．had caused |
| B．had been caused |
| C．caused |
| D．was caused |
I was held up for about half an hour in the traffic jam，__________ the delay.
| A．it caused |
| B．thus causing |
| C．caused |
| D．to cause |