10. Don't
A. stay on
11. Lack
A. in
12. His head is very
B. rice
late. You should go to bed early. It's good for your health.
D. stay up
sleep will make you feel tired.
B. of
C. about
hot. He looks so tired. I think he has
B. a cough
A. a temperature
13. They go
A. swims
B. swiming
14. ...
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