Who probably built the first permanent shelters？
A. Fish-eaters.
B. Hunters.
C. Lumbermen.
D. Farmers.
查看答案
If you keep early hours, you'll ______.
A. have enough exercise
B. be healthy
C. be poor
—Did Nancy come for the meeting last night？ —No. She was so tired that she soon ______ in
A. fell behind
B. fell asleep
C. fell off
【B6】
A. near
B. nearby
C. beside
【B9】
A. nearby
B. far
C. far away
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