He has never ________ of such a thing before.
#54048
A
hear
B
heared
C
heard
D
hearing
推荐题目
The water in the river nearby will be dirtier than before if nothing __________.
#52543
A
has done
B
will be done
C
is done
D
was done
— Can Sam ?—No, he . But he is good at .
#59003
A
draw; can; sings
B
draw; can’t; singing
C
draws; can; sing
D
drawing; can’t; singing
Internet is very useful. It can __________our eyes to the outside.
#61898
A
put up
B
grow up
C
turn up
D
open up