I heard him______ outside.
#50192
A
sang
B
to sing
C
singing
D
sings
推荐题目
The students were in a great hurry ____________ the bus after school.
#50857
A
caught
B
catching
C
to catch
D
catch
It is easy for the students to school because of the new subway in the city.
#49748
A
to go
B
go
C
goes
D
going
— Do I have to sell my old computer? It almost stops working. — You ________ do so, it only needs ________. Something has gone wrong with it.
#48576
A
mustn’t; to repair
B
can’t; repairing
C
needn’t; repairing
D
may not; to repair