_____，memories of staying abroad as an exchange student flooded into his mind.
#92200
A
Listening to these songs
B
Having listened to these songs
C
He was listening to these songs
D
When he listened to these songs
推荐题目
Not having worked out the program, ________ leave the office.
#93247
A
so he was forbidden to
B
and he didn’t want to
C
his little son couldn’t make him
D
be couldn’t free himself to
Find ways to praise your children often，____you’ll find they will open their hearts to you．
#92888
A
till
B
or
C
and
D
but
To help a friend solve the problem troubling him, .
#93631
A
a friend should be made known of his difficult situation
B
a man should be equipped with the kind of knowledge required
C
nothing is better than offering of knowledge required
D
keeping one’s promises is most important
—Must I turn off the gas after cooking? —Of course, you can never be ____careful with that．
#93013
A
enough
B
very
C
so
D
Too