1) I'm going to China soon. I ... buy a guidebook. a) must b) don't have to 2) You can never find your passport. You ... put it in a safe place. a) should b) shouldn't 3) ....get a cisa for the USA? a) Should we b) Do we have to 4) The plane leaves at 9 a.m., but we  ... be there until 7 a.m. a) mustn't b) don't have to 5) I ... pack my bags. We leave in an hour. a) shouldn't b) ought to 6) it's going to be very hot at the beach.  We ... forget the sun cream. a) mustn't b) must

English Class B1 Unit 6.2 (ex. 4 / 74)

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