--- 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
—What are you going to do when you grow up?—A singer，but my parents wish me ________ a teacher.
#48521
A
am
B
to be
C
will be
D
be
It’s good for health to sleep with the windows _______ in hot summer.
#49873
A
close
B
opened
C
closing
D
open