问题补充:
Don’t the birds. Listen to the teacher carefully.
A. look
B. look out
C. look out of
D. look out at
答案:
A. look
B. look out
C. look out of
(答案→)D. look out at
解析:look看;look out 注意,当心;look out of 向外看,看……的外面;look out at向外看某物。句意:不要向外看鸟。认真听老师讲课。结合语境可知选D。