[ Modal Verbs ]
You (walk) the dog twice a day, or else you will clean its piss from the floor.
A. have to
B. should
C. must
D. mustn’t

Random Topics:
Grammar of Conjunctions and PrepotitionsAdverbs, Infinitives, Definite ArticlePast Simple vs Present SimpleModal "Have to"Modal and Auxiliary VerbsGrammar RulesModal Verbs of PermissionIndefinite and Intensive NounFuture FormsSubject Verb Agreement and Verb TensesOther quiz:
Grammar › ViewWrite the plural forms of these nouns.
sheep
A. sheeps
B. sheep
Vocabulary and Grammar › View
Lots of animals are losing their natural … because humans are cutting the forests down.
A. habit
B. hobbit
C. habitat
D. habittat
Conjunction › ViewIdentify the appropriate conjunction: “He must finish his homework ____ he can go out with friends.”
A. before
B. so
C. but
Present Perfect › View
The present perfect mainly is used to talk about…
A. Experiences
B. Habits
C. Routines
D. Goals
