Listen! Someone______ an English song now.
#37795
A
sings
B
sang
C
is singing
D
was singing
推荐题目
The students were all tired but ________ of them stopped ________.
#37504
A
no, to rest
B
none, to rest
C
no, resting
D
none, resting
The scientists ________ on the new medicine for two years. They will succeed in no time.
#38384
A
work
B
are working
C
have worked
D
will work
---What ______ the forest of Yangzhou in the last 30 years?---Yangzhou has become much greener.
#39620
A
has happened to
B
was happened to
C
has happened at
D
is happening
Clothes made of silk ________ softer than those made of cotton.
#37433
A
are felt
B
feel
C
are feeling
D
is felt