A driver should ________ the road when _________.
#96573
A
concentrate on; drive
B
concentrate in; driving
C
concentrate to; drove
D
concentrate on; driving
推荐题目
We are invited to a party _________in our club next Friday. 
#98964
A
to be held
B
held
C
being held
D
holding
The fruit ________  fresh in his fruit stand sells well. 
#94463
A
looking
B
looked
C
looks
D
to be looked
Our previous school building,______ like an“E”, was built in1961.
#88881
A
being shaped
B
to be shaped
C
shaping
D
shaped
 The tower_____ in the 1800s is the oldest building in this area.
#90031
A
to be completed
B
being completed
C
completed
D
Completing