Before going abroad he devoted all he could _______ his oral English.
#98935
A
improve。m
B
to improve
C
improving
D
to improving
推荐题目
The boy______ between my sister and my brother is my cousin, Jack.
#95823
A
sitting
B
sat
C
sits
D
to sit
With so many difficult problems ______, the manager felt worried all the time.
#97073
A
settled
B
having settled
C
settling
D
to settle
The chair looks rather hard, but in fact it is very comfortable to _______.
#89763
A
sitting
B
sit on
C
sit
D
being sat on