[ Expressing Obligation and Modals ]
It is Monday. The students are having flag ceremony. Every student ….. wear uniform. They are standing in the yard.
A. can
B. must
C. may
D. should

Random Topics:
Present Simple and Present ContinuousTransition WordsObject PronounsLinking Verbs and TensesVerbs + Gerund or InfinitiveQuantifiers with NounsPast Perfect & Past SimpleSuffixes and TensesModals of Speculation and DeductionGerund, Participle, Infinitive, or AppositiveOther quiz:
Grammar › ViewSelect the correct sentence.
A. It has raining for several days.
B. It has been raining for several days.
C. It have been raining for several days.
D. It has been rain for several days.
Grammar and Vocabulary › View
Rubbish ______________ collected once a week.
A. is
B. is being
Present Simple and Present Continuous Tenses › ViewWhy … you … (not follow) them? Look! They are waiting for you.
A. are, not following
B. are, following
C. is, not following
D. do, not follow
Modals and Comparative Superlative › View
A rock is ………. a leaf.
A. heavier than
B. the heaviest
