[ Modal Auxiliary ]
Boys … throw stones at animals.
A. mustn’t
B. can’t
C. don’t have to

Random Topics:
Sentence Adverbs & Third ConditionalPreposition and AdjectiveAdverbs of frequencyGrammar and PrepositionConjunctions and CommasAdjectives and DegreesSubjunctiveGerunds in SentencesLet & Be allowed toQuestion WordsOther quiz:
To Infinitive/Bare Infinitive/Gerunds › ViewHave you ever considered ————– a pharmacist?
A. become
B. becoming
C. to become
D. became
Future Tense › View
At three o’clock this afternoon, we ________ outside the town hall for six hours.
A. will have been protesting
B. will have protested
C. will be protesting
D. shall protest