[ Grammar ]
I __________ reading a book.
A. is
B. are
C. am

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Relative Clauses and Past PerfectAdverb Of PlaceV-ing/to-VSimple Present and Present ContinuosPhrasal verbs and Prepositional PhrasesTenses of Verbs - UsagePresent Progressive (Future)Past and Present TensesCompliment, Congratulation, and HopeTenses: Present simple, Past Simple, Future SimpleOther quiz:
Conditional Sentences › ViewIf I _____ you were sick. I would have called sooner.
A. knew
B. had known
C. know
D. would have known
Grammar › View
You ______ take your umbrella. It is not raining.
A. couldn’t
B. needn’t
C. may not
D. mustn’t
If I study hard, I ________ pass the exam.
A. will
B. would
C. could
D. are
Grammar › View
Good dictionaries aren’t cheap. How much did you _____ on your new one?
A. charge
B. buy
C. spend
