—Mary was heard_______ just now. What happened?—John was telling a joke.
#45050
A
cry
B
to cry
C
laugh
D
to laugh
推荐题目
 Personal computers ______ in 1976. It has changed the whole world.
#44711
A
have invented
B
were invented
C
is invented
D
invented
Put on more clothes, Kate. The window in our room ______ yesterday. 
#44786
A
was broken
B
are broken
C
have broken
D
will break