Children _______ sit in the front seat of a car. It’s too dangerous.
#36775
A
need
B
needn’t
C
must
D
mustn’t
推荐题目
I              many new friends since I came here.
#37037
A
make
B
was making
C
will make
D
have made
A lot of trees________ around here every year, and we can  enjoy fresher air now.
#39126
A
were planted
B
are planted
C
will planted
D
are planting
Can you __________in English?--Yes, I can.
#42825
A
sing
B
singing
C
sings
D
singed
—You ______ this new i—pad yesterday, right?—No. I ______ it for a month. It works well, I think.
#36142
A
have had, had
B
bought, have bought
C
bought, have had
D
had, have bought