[ Tenses ]
He ……………………………………………….. (study) English) very hard for the last few days until he took his exam yesterday.
A. has been studying
B. had been studying
C. had studied
D. was studying

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Grammar - Collective NounsParts of Speech and Compound SentencesHave as verb and auxiliaryCardiology ServicesAsking & Giving AttentionCan/CouldPossessive Pronouns and QuantifiersModal Verbs - ObligationPast Perfect TenseGrammar - Present and Past PassiveOther quiz:
Grammar › ViewJeremy is ……………. selfish to admit his mistake.
A. too
B. enough
Grammar › View
I ____ a lot of assignments last week
A. complete
B. completes
C. completed
D. has completed
Vocabulary › Viewcoming directly from actually seeing or experiencing something
A. secondhand
B. firsthand
C. observation
D. exert
Grammar › View
Which adjective doesn’t end with -er when we change it into its comparative form?
A. big
B. tall
C. good
D. modern
