Which do you enjoy _____ your weekend, swimming or fishing?
| A．spending | B．being spent | C．spend | D．to spend |
Only in this way, _______succeed in solving the problem.
| A．you can | B．can you | C．you would | D．could you |
On Christmas Day, children had _____ singing, dancing and playing games.
| A．funs | B．a fun | C．the fun | D．fun |
______ when he was young, he would have a good job now.
| A．had he worked | B．did he work | C．if he worked | D．if he has worked |
______the most famous musician in the world, he earns a lot of money every year.
| A．Knowing as | B．Known for | C．Known as | D．Knowing to |
_______his homework, he was not allowed to play out.
| A．Not finished | B．Having finished |
| C．Having not finished | D．Not having finished |