While I _______ (prepare) for the midterm exam, my friend ________ (play) the guitar.
A. prepared / played
B. was preparing / was playing
C. was preparing / played
D. prepared / was playing

Random Topics:
Tenses and OpinionsGrammar PhrasesAdverbs or AdjectivesCausative VerbPresent ContinousCan/CouldPhrases and ClausesPast PassiveSimple and Past TensesWish SentenceOther quiz:
Grammar › ViewYou _______ sign up to the team in the main office.
A. should
B. must
C. can
D. have to
Grammar › View
A policeman explained …………….the children why they should never run across the road.
A. in
B. to
C. by
D. on
Modal Verbs › ViewChoose the correct modal verb to express a polite request: “___ you please pass the salt?”
A. Must
B. Should
C. Could
D. Will
Simple Past Tense › View
Affirmative: I got up early last weekend.
Choose the negative:
A. I get up not early last weekend.
B. I did not get up early last weekend.
C. I not got up early last weekend.
D. I did not got up early last weekend.
E. I did not got up early on weekend.