问题

He has poor eyesight _____ too much computer work at night.[ ]
A: because
B: because of
C: and
D:but
B: because of
C: and
D:but
正确答案是:
同类题型
I won’t go to see the film this evening because I _____ my ticket just now.
The two trains go______ the tunnel ______ the same time. [ ]
.He said that not until the heavy snow blocked the express ______ how serious the weather was.
The work is too hard for him. He__________ finish it on time.
The lady in this photo ________ be over fifty! She looks so young!