The research mainly deals with the difficulty the students have ______ their attention pm their study all the time.
#67421
A
to focus
B
to be focused
C
focusing
D
focused
推荐题目
Without proper lessons, you could ____ a lot of bad habits when playing the piano.
#82768
A
give up
B
catch up
C
keep up
D
pick up
As there was no spare bedroom, Susan had to ______ her friend for a night in the sitting-room.
#81380
A
build up
B
fix up
C
take up
D
pick up
The teacher stressed again that the students shouldn’t __________ any important details while retelling the story.
#70764
A
bring out
B
let out
C
leave out
D
make out