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--What do you think “upset” mean?

--I'm not sure. It ________ mean sad.

[　　]

Please stop ________ a rest if you feel tired.

[　　]

Since 1949, basketball courts ________ everywhere.

[　　]

If it were nice today, we ________ for a picnic. But we were unlucky today.

[　　]

--I always feel nervous before the exams. What should I do?

--If I were you, I ________ take a long walk before going to bed.

[　　]

Next year we'll have an opportunity ________ the beautiful city, Singapore.

[　　]

Parents should be strict ________ teenagers instead of ________ them.

[　　]

--What rules do you have at home?

--We ________ to go out on school night.

[　　]

Sixteen-year-olds should not be allowed to drive because they aren't ________ at that age.

[　　]

On school days we need ________ our uniforms.

[　　]