[ Modal Verbs ]
Employees _____ use their cellphones in work hours.
A. Can’t
B. Mustn’t
C. Shouldn’t

Random Topics:
Time Clauses of FuturePresent ContinousDeterminers & QuantifiersNoun PhrasesPrepositions and ArticlesQuantifiers & Modal VerbsPassive Voice of TensesThird ConditionalGrammar speak,talk,say,tellFuture Perfect ContinuousOther quiz:
Grammar › ViewSome of the architecture and building _____ in Bangkok are really mind blowing and extraordinary.
A. design
B. designs
C. designer
D. designers
Grammar › View
There is nothing you can do about the situation, so it’s no use _____________ about it.
A. to worry
B. worrying
C. worry
D. to worrying
Grammar › ViewI ______ a good movie on TV last night.
A. watched
B. watch
C. watches
Grammar › View
If they ……… studied hard last night, they ……… got the perfect score.
A. Had ……… Would have
B. Had ……. Would had
C. Had …… Will have
D. Had …… Will had
