[ Tenses ]
We had to stop working. We (work) hard for six hours.
A. have worked
B. have been working
C. are working
D. had been working

Random Topics:
Grammar: Adjectives & PrepositionsGRAMMAR - Could / Could notEssential and Nonessential ClausesSecond ConditionalWord FormationCoordinating & Subordinating ConjunctionsFirst Conditional, Future Time ClausesArgumentative VocabularyPast Continuous TensePresent Perfect Simple vs ContinuousOther quiz:
General Quiz › View_____ we _____ Jane and Rick to dinner?
A. Should – invite
B. Should – eat
Grammar Phrases › View
. A noun phrase with more than one word can consist of a noun and words that_____
A. replace the noun
B. qualify the noun
Grammar › View________ of the paintings in this gallery are thought to be worth millions.
A. Both
B. Each
C. All
D. Several
Grammar › View
He doesn’t work on the weekends, _____ _____?
A. does he
B. didn’t he
C. should he
D. isn’t he
