III. Read the sentences and choose the correct
variant.
1. You ... speak very fast.
a) should b) shouldn't
2. Lessons ... begin after assembly.
a) should b) must
3. They ... behove so.
a) mustn't b) shouldn't
4. Teachers ... speak very fast.
a) should b) shouldn't
5. Children ... do all the homework that the
teacher gives them.
a) must
b) should
6. She ... wear a uniform.
a) must
b) mustn't
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