________ he finished writing his paper in such a short time surprised us all．

A．When

B．Why

C．That

D．What

The man ________ as “a crazy guy” is actually the boss of our company．

A．who has referred

B．referred to

C．referring to

D．who referred to

________ his help, I finally caught up with my classmates．

A．Rather than

B．In spite of

C．Instead of

D．Thanks to

If farming goes ________ nature, all kinds of disasters are the results．

A．against

B．for

C．with

D．to

You did not perform as well as the other competitors —— ________, you failed．

A．in other words

B．in all

C．in the end

D．at the same time

Only after my friend came ________．

A．did the computer repair

B．he repaired the computer

C．was the computer repaired

D．the computer was repaired

This is the only way we can imagine ________ the overuse of water in students' bathrooms．

A．to reduce

B．reducing

C．reduced

D．reduce

He's got himself into a dangerous situation ________ he is likely to lose control over the car．

A．why

B．which

C．while

D．where

________ a US visitor visa twice, the young man finally gave up his hope of visiting America．

A．Having refused

B．Being refused

C．Having been refused

D．To be refused

Dad, where ________ you put my pen after you used it? I ________ it anywhere．

A．did; haven't found

B．did; didn't find

C．have; haven't found

D．have; didn't find