[ Passive Voice with Modal Verbs ]
. The books ______ by next week.
A. must return
B. must be returning
C. must returned
D. must be returned

Random Topics:
Habitual and Continuous TensesVocabulary and ModalsPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTAdverbs, Prefixes, and SuffixesConjunctions and Verb TensesIndefinite and Intensive NounPresent / Future / Present Progressive / non Action Verbsa, an, the, zero articleGerund vs InfinitivePast Tense vs Future TenseOther quiz:
Grammar › ViewMary “I love chocolate.”
Jill: “Mary said (that) she ___ chocolate.”
a. loved
b. loves
c. loving
No Excuse Words / Conjunction SO › View
What ____that mean?
A. duz
B. does
C. duse
Tenses and Articles › ViewWhat is the correct form of the present perfect tense of the verb ‘to eat’?
A. have eaten
B. has eaten
C. had eaten
D. ate
Grammar › View
This is the first time we……. such a romantic play.
A. have seen
B. see
C. saw
D. had seen