--- You look ______,Paul. What’s the mat
题型：选择题
问题：
--- You look ______,Paul. What’s the matter?--- I’m having trouble ______ math.
A．tired, to learn
B．worried, learning
C．frustrated, to learn
D．angrily, learning
--- You look ______,Paul. What’s the matter?--- I’m having trouble ______ math.
A．tired, to learn
B．worried, learning
C．frustrated, to learn
D．angrily, learning