—Before he went abroad, he spent as much time as he ____ English. 
#50421
A
could learning
B
learned
C
to learn
D
could learn
推荐题目
 I finished ______ my homework about two hours ago.
#50240
A
to do
B
doing
C
does
D
to does
 You are too tired, please stop _______.
#49070
A
to work
B
work
C
working
D
worked