Topics: Modal Verbs of Obligation
You ____ turn on central heating. It’s automatic.
A. mustn’t
B. have to
C. don’t have to
Select your answer:
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Vocabulary › Viewto take part in or become involved in an activity
A. character
B. past tense
C. purpose
D. participate
Grammar › View
Complete the sentences with in, on, or at. I usually go to bed ___ 11:00 p.m.
A. at
B. in
C. on
D. by