[ Present Perfect Simple & Present Perfect Continuous ]
The scientist ___ their research yet
A. haven’t finished
B. haven’t been finished
Select your answer:
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If vs. Unless Pronoun vs. PronounsPrecede vs. ProceedPresent Perfect and Present Perfect ContinuousGerundsInfinitives and GerundsGrammar, Literature, and VocabularyModal Verbs & Reflexive PronounsFew, a few, little, a little
Other quiz:
Gerund or Infinitive › ViewPlease remember ____ lock the door when you go out.
A. to lock
B. locking
Grammar › View
Ling Ying, together with Alyssa, _____________ to play badminton.
A. have liked
B. is liking
C. like
D. likes
How to use : Read the question carefully, then select one of the answers button.