[ Tenses ]
The students ______ attentively to the lecturer when a phone rang.
A. listen
B. are listening
C. have listened
D. were listening

Random Topics:
Grammar - much, many, a lot ofInterrogative PronounsCommon ErrorApostrophe GrammarCohesive DevicesPast Perfect SimpleCountable & Noncountable NounsPossessive Nouns with Apostrophes and PronounsFrequency AdverbsSecond Type ConditionalOther quiz:
Grammar › ViewI _______ return the book after I read it.
A. will arrives
B. arrives
C. will going to arrives
D. will arrvie
Grammar › View
Which sentence has the correct capitalization?
A. tomorrow is the biggest game of the year.
B. tomorrow is the biggest Game of the year.
C. Tomorrow is the biggest game of the year.
D. tomorrow is the Biggest game of the Year.
Grammar for TOEFL › ViewThe great digital advances of the electronic age, such as integrated circuitry and a microcomputer, has been planted in tiny chips.
A. great digital
B. circuitry
C. has
D. planted
Grammar › View
Make a list of countries _____ population is greater than 20 million.
A. that
B. whose
C. which
D. who
