[ Tenses ]
They __ (work) on the project for several months now.
A. are working
B. work
C. have been working
D. have worked

Random Topics:
ConditionalPresent Simple/AffirmativeAdjective vs AdverbIf/Unless - Conditional type 1Preposition of DirectionGrammar (want to/ need to/ have to)Vocabulary and IdiomsBe going to / WillVerb AbilityPast PerfectOther quiz:
Tenses › ViewI … at the gym last Sunday, but I … you there.
A. was/ didn’t see
B. am / don’t see
C. was/ don’t see
D. am/ didn’t see
Grammar and Passive Voice › View
Which of the following sentences uses the passive voice correctly with a past continuous tense?
A. The bridge was being built last year.
B. The bridge is being built last year.
C. The bridge will be being built last year.
D. The bridge has been being built last year.
Grammar › ViewWhat are you afraid…………?
A. to
B. with
C. of
Grammar and Vocabulary › View
When ________ you visit the new school?
A. did
B. had
C. went