[ Present Perfect Tense ]
Lisa and Jill ………………………. at the library ……………. three hours.
A. has been / for
B. were / since
C. have been / for
D. have been / since

Random Topics:
Simple Present and Present ContinuosAdverb or AdjectiveTAG QuestionsConditionals (0 - 1 - 2)Was & Were QuestionsZero & First ConditionalVerbs and TensesSimilesCountable QuantifiersPossesive Pronouns and Modals of AbilityOther quiz:
Future Tense (will/be going to/p.continuous) › ViewTell them again. Perhaps they _______________.
A. will understand
B. are going to understand
C. will be understand
D. understands
Grammar › View
because of the heavy rain, the drivers drove ___
A. carefully and carefully
B. more and more carefully
C. more than carefully
D. most and most carefully
Adjectives Ed and Ing › ViewLaura has worked all day. She is ____________ now.
A. tired
B. tiring
Present Continuous Tense › View
You . . . . . . . . . . . . . . . . . . . . a lot of noise. Can you be quieter? I . . . . . . . . . . . . . . . to concentrate.
A. is makeing/am trying
B. are makeing/ am trying
C. are making/ am trying
D. is making/ am trying
