嗯···我知道答案,就是不知道为什么选那个···· 所以,要解释!解释!!
I'll give your my friend's home adress ,___I can be reached most evenings.
A.which B.when C.whom D. where
We'll discuss a number of cases ____beginners of English fail to use the language properly.
A.where B. as C. why D. which
The train ___ she was traveling was late .
A.which B. where C. on where D. in that