[ Present Progressive (Future) ]
Mary and Sam _________________ dinner on tuesday.
A. are cooking
B. are not cook
C. is cooking
D. are cook

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Present/Past/Future Continuous TensePresent Simple: affirmative, negative, interrogativeBare Infinitive and To InfinitiveGerunds/InfinitivesAdverbs and Time ExpressionsPast Simple or Past ContinuousGrammar and IdiomsFunctional Sentence TypesTypes of PrepositionTOEFLOther quiz:
Tag Questions › Viewhe is arabian, _________
A. isnt he
B. isnt she
C. is he
D. is she
Grammar › View
Rita: Isn’t the movie at a quarter to seven? Lily: That’s right. It’s at _____. Let’s hurry up, or(否則)we’ll(將)be late for the movie.
A. seven fifteen
B. six forty-five
C. seven thirty
D. six thirty
Grammar › ViewI’m tired. I definitely___________stayed up so late last night.
A. shouldn’t have
B. couldn’t
C. may have
D. could has
Grammar › View
Choose the best coordinating conjunction to combine the following pairs of sentences into compound sentences
I saw the crash about to happen. I couldn’t prevent it.
_
A. or
B. and
C. but
D. yet