Was it______ Tom's carelessness______ your keys were lost?
|
A.because; which |
B. for; what |
C.because of; that |
D.since; why |
You may ______ your teachers for help when you have problems.
|
A.turn up |
B. turn down |
C.turn to |
D.turn off |
We ______ while Mr. Evan read the exam results.
|
A.held our breath |
B. wasted our breath |
|
C.caught our breath |
D.took our breath |