Sleep is important, and ______trouble having a good night’s rest can be very annoying.
#90645
A
having
B
have
C
had
D
have had
推荐题目
__________ there was danger ahead, the girl walked on.
#93989
A
Known not
B
Not known
C
Knowing not
D
Not knowing
Every minute must be made full use of________spoken English.
#90681
A
to practise
B
practising
C
to practising
D
practice
Don’t leave the water ________ while you brush your teeth. 
#94420
A
run
B
running
C
being run
D
to run
I saw him _______ out of the room. 
#98800
A
go
B
had gone
C
has gone
D
goes