[ 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:
Grammar › ViewWhat is the adverb in the following sentence? We ran quickly across the field.
A. quickly
B. We
C. across the field
D. ran
Grammar › View
William ______ (run) to catch the bus when he ____ (fall over).
A. ran / was falling over
B. was running / fell over
C. ran / fell over
D. was running / was falling over
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
