He has been working hard day and night, which, of course,      his tiredness.
#71235
A
accounts for
B
answers for
C
applies for
D
stands for
推荐题目
Great changes _______ in our hometown since 1980
#65794
A
took place
B
have happened
C
has been taken place
D
have taken place
She likes to have everything in order so that she can ______ them when necessary. 
#75192
A
have a hand in
B
place hands on
C
put her hands on
D
lay her hand on
The kind girl ________all her spare time she had ____ others.
#66121
A
devoted…to help…
B
does devote… helping
C
devotes…helped…
D
did devote…to helping...