’Take the medicine and go to bed early.If the headache （），you should come for an X－ray examination，’said the doctor.

Despite a very tight schedule, everyone who came to the meeting agreed that at least one day should be （）for sightseeing.

A.set apart
B.added
C.put in
D.inserted

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This entrance is in （）use：do not block it.

A.constant
B.tender
C.creative
D.critical

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