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
I hate all this travel; I want to get married and _________.
#68914
A
settle down
B
settle on
C
settle upon
D
settle for
My command of English is not ____ yours.
#82017
A
as half as
B
so half good as
C
good as half as
D
half so good as