In the USA, he made a lot of friends ______ English well to make himself ______.
#97969
A
learn; understand  
B
to learn; understood
C
learning; understand
D
learned; understood
推荐题目
.The dying old man opened his mouth as if ___ something.
#98872
A
to say
B
saying
C
to have said
D
was saying.
 I can’t stand _______ with Jane in the same office. She just refuses _______ talking while she works.
#89718
A
working; stopping
B
to work; stopping
C
working; to stop
D
to work; to stop