1 did you do ( )deal with the trouble in the workshop
A everything you could
B what you can to
C all that you can
D all you could to
要解释清楚为什么要选D最好能每个选项都说出理由
2 有没有很简单的理解，什么时候该用whoever什么时候该用who
例如 ( )has helped to save the drowning girl is worth praising.
A who B the one Canyone D whoever
这里为什么要选D而不选A？
3 water power stations are built ( )big water falls.
A which are B which has C where there have D where there are
要解释

1 did you do ( )deal with the trouble in the workshop
A everything you could
B what you can to
C all that you can
D all you could to
考察句型do ……one can to 做所有能做的A应加上to
2 例如 ( )has helped to save the drowning girl is worth praising.
A who B the one Canyone D whoever
A引导定语从句D引导状语从句=no matter who无论是谁，最简单据句意判断
3 water power stations are built ( )big water falls.
A which are B which has C where there have D where there are
应该是D，定语从句附带考察there be句型，A应该是in which