[ Tenses ]
They ___ (to wait) for the bus for 30 minutes when it arrived.
A. waited
B. had been waiting
C. wait

Random Topics:
Grammar - to bePresent, Past, Present Perfect and ComparativeAdjectives and ArticlesPast Simple vs Present SimpleTenseDefinite vs Zero Article Abstract NounsFor vs SinceGerund vs InfinitiveSimple Present Continuous TenseDegree of ComparisonOther quiz:
Present Tenses › ViewThis is the first warm day we ____ (have) this year.
A. have
B. are having
C. have had
D. have been having
Time › View
That’s ok. I will wait for him ____ 6 o’clock.
A. Before
B. Until
C. Since
Susie can help you, _______?
A. can she
B. can’t she
C. couldn’t she
D. could she
Grammar › View
I am sorry I don’t know the answer, but I really wish I …..
A. know
B. will know
C. knew
D. have known
