How much time did you spend ________ a bargain?
#51388
A
look for
B
looking for
C
to look for
D
looked for
推荐题目
---I find the more we study, the more difficulty we have ________ out Maths problems.---Oh, I agree with you. Maths is more and more difficult.
#50150
A
worked
B
work
C
works
D
working