Many small victories to a big one.
A. come up
B. add up
C. go up
D. rise up
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Please the form and submit a written application letter.
A. fill out
B. set out
C. fall in
D. put out
The teacher’s explanation the puzzling problem.
A. understood
B. calculated
C. facilitated
D. clarified
This work is enough to run everyone down.
A. interesting
B. exhausting
C. frustrating
D. dedicating
She couldn’t stand the of not being able to help.
A. difficulty
B. dilemma
C. frustration
D. devotion