[ Past Tenses ]
which one is past perfect tense?
A. She studied math that month
B. She had studied math that month
C. She was studying math that month

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Gerund Subject or ObjectTake or PutModals of Obligation and PermissionPast SimpleConditionals / Unreal PastQuestion TagCan vs CouldPassive Voice with Modal VerbsPresent Simple: affirmative, negative, interrogativeLinking Verbs & Helping VerbsOther quiz:
Grammar › ViewWe________a holiday in October every year.
A. have
B. has
C. having
D. haves
Tenses › View
. We ______ (wait) for the bus for 30 minutes.
A. wait
B. are waiting
C. have waited
D. have been waiting