He looks very tired because he           well last night.
#39894
A
didn’t sleep
B
hasn’t slept
C
slept
D
sleeps
推荐题目
----What do you want to do for vacation?------I_____my grandmother.
#38037
A
visit
B
am going to vist
C
visited
D
visiting
- Could you tell me_______?- Every four years.
#39711
A
how often the Olympic Games take place
B
when the Olympic Games are held
C
how often are the Olympic Games held
D
how often the Olympic Games were held
Becky took a photo of her friends while they _________ computer games.
#38014
A
play
B
are playing
C
were playing
D
have played