While Helen __________ the guitar, her mother came in.
#41299
A
was playing
B
is playing
C
played
D
plays
推荐题目
When different cultures, we often pay attention only to the differences without noticing the similarities.
#68209
A
compared
B
being compared
C
to compare
D
comparing
_____ is known to us all is that America is a developed country _____ the First World.
#72465
A
Which; belonging to
B
as; belonging to
C
what; belonging to
D
It; belonging to
Put the books back ________ they belong after you have finished them.
#74130
A
where
B
to where
C
to which
D
to the place
After quarreling with her best friends, Mary has got herself into a situation______ she is likely to turn to nobody for help.
#70640
A
where
B
which
C
while
D
why
you may have , you should gather your courage to face the challenge .
#67965
A
However serious a problem
B
Whatever serious a problem
C
However a serious problem
D
No matter how a serious problem