[ 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:
Homonyms › ViewThe cruel ___ is raging and young men are asked to fight.
a. war
b. wore
Phrasal Verb › View
Let’s _____ that old shoes. We don’t need it anymore.
A. Throw away
B. Throw over
C. Throw in
D. Throw up
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
