[ Modal ]
We use it to express a recommendation.
A. Can, could
B. May, might
C. Must, have to
D. Should, ought to

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Modal Verbs › ViewWhich modal verb expresses possibility or suggestion?
A. can
B. may
C. shall
Grammar › View
I ______ my key yesterday and I _______ found it yet.
A. have lost / didn’t
B. lost / haven’t
C. lost / didn’t
D. have lost / haven’t
Grammar › ViewI am sorry but you _________________ take pictures in this part of the museum. See that sign? It is against the museum rules.
A. Can’t
B. Shouldn’t
C. Don’t have to
D. ‘ve got to
Grammar › View
…house is very big.
A. Them
B. Us
C. Their
D. They