______improve his oral English, he took part in the summer course 
#26320
A
So as to
B
In order to
C
So that
D
In order that
推荐题目
16.He is heavily ____ now, so he can’t pay for a new house.
#28019
A
out of debt
B
get into debt
C
in debt
D
get out of debt
The building used to be splendid but now it is _____.
#25602
A
in ruins
B
in the ruin
C
with the ruin
D
by ruin