Question

I got a piece of mail yesterday which I ________ for over two weeks.

1. A.
   was expecting
2. B.
   had been expecting
3. C.
   have expected
4. D.
   had expected it

Answer 1

B
主句用了一般過(guò)去時(shí)，定語(yǔ)從句的動(dòng)作發(fā)生在主句動(dòng)作之前，用過(guò)去完成進(jìn)行時(shí)表示這一動(dòng)作一直持續(xù)到主句的動(dòng)作。