--- You look ______,Paul. What’s the matter?--- I’m having trouble ______ math.
#51056
A
tired, to learn
B
worried, learning
C
frustrated, to learn
D
angrily, learning
推荐题目
The students enjoy _________ English songs after class.
#50140
A
practice to sing
B
practicing singing
C
to practice singing
D
to practice to sing
— Would you like ________ with us tonight?— Yes, but I have to work with my boss.
#51363
A
having lunch
B
have dinner
C
to have lunch
D
to have dinner