—Mary was heard ________ just now. What happened?—John was telling a joke.
#49144
A
to cry
B
laugh
C
to laugh
D
cry
推荐题目
 How much time did you spend ________ a bargain?    
#51388
A
look for
B
looking for
C
to look for
D
looked for
My parents want me   more exercise. 
#48989
A
take
B
takes
C
taking
D
to take
Please tell Tom ______ too much noise.
#51078
A
to make
B
not to make
C
to not make
D
don’t make