I ________ when the UFO landed.
#42296
A
am watching TV
B
was watching TV
C
have watched TV
D
watched TV
推荐题目
--What if you don't finish your work on time? -- Mrs. Brown will be very angry.
#36820
A
happens
B
is happened
C
happened
D
will happen
Hurry up! Once the concert starts, nobody _______ to enter the concert hall.
#36280
A
allows
B
allowed
C
is allowed
D
is allowing
— Were you at home at that time?— No, I ______ dinner with my friends in a restaurant.
#41654
A
have
B
had
C
will have
D
was having
— When _________ you________ your teeth, Billy?—Just now.
#42507
A
do; brush
B
have; brushed
C
did; brush
D
was: brushing
