．Walking alone in the dark，the boy whistled to ________ his courage.
#11038
A
hold up
B
keep up
C
set up
D
take up
推荐题目
The Korean government plans to import Chinese cabbage from China, as the recent rainstorm has______ the price.
#12932
A
driven up
B
taken up
C
set up
D
looked up
Mr. White is a careful and experienced engineer, so he is often to finish some challenging tasks.
#12892
A
appreciated
B
approached
C
appointed
D
agreed
After a second thought, Bill ________ a better idea of how to solve the problem.
#13358
A
put up with
B
came up with
C
kept up with
D
mixed up with
_______by the teacher, she took two books away from the reading room.
#13921
A
Permit
B
Permitting
C
Permitted
D
Permits