_____ being fun and good exercise, swimming is a very useful skill.
| A．As to | B．In spite of | C．regardless of | D．Apart from |
We are pleased with the fact that the people in the poor area are proud of what they ______ in the past 10 years.
| A．are achieving | B．achieved | C．have achieved | D．had achieved |
Only ______ a human being.
| A．when is it hungry a lion will attack |
| B．when it is hungry a lion will attack |
| C．when it is hungry will a lion attack |
| D．when is it hungry will a lion attack |
My English teacher gave us a suggestion yesterday, _____is often the case, ______our monitor organize a debate after class.
| A．which, which | B．which, that | C．as, that | D．as, which |
It was three months later _____ he completed the job with difficulty.
| A．since | B．before | C．while | D．that |
It ___________last night, for the ground is wet outside.
| A．would be raining | B．would have rained | C．must rain | D．must have rained |