Theymusthavebeenherethedaybeforeyesterday,____?
A. mustn’tthey
B. didn’tthey
C. mustn’thavethey
D. hadthey
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--MustItakeabus?No,you____.Youcanwalkfromhere.
A. mustnot
B. don’t
C. don’thaveto
D. hadbetternotto
--Whydoyoumakemedoso?Iamsorrythatyou________dosuchathing.
A. would
B. can
C. should
D. may
--Willyoustayforlunch?Sorry,_____.Mybrotheriscomingtoseeme.
A. Imustn’t
B. Ican’t
C. Ineedn’t
D. I won’t
Whatwouldhavehappened____,asfarastheriverbank?
A. ifBobhaswalkedfarther
B. ifBobshouldwalkfarther
C. hadBobwalkedfarther
D. ifBobwalkedfarther