[ Tenses & Passive ]
This exercise __________ carefully
A. must do
B. must be doing
C. must done
D. must be done

Random Topics:
Parallel Structure or Combining SentencesTenses and Passive VoiceAnalogySentence Types and ConjunctionsConjunctivesNouns FormationInfinitive FormsPast or Present Verb TenseActive vs. Passive VoicePossessive PronounsOther quiz:
Grammar › ViewI am going to call my mother _____ a few minutes.
A. in
B. on
C. at
D. for
Grammar › View
María___ see too many memes on The Internet because she is procrastinating.
A. shouldn’t
B. should
C. shouldn’t it
D. should it
Grammar › View. What is the function of the preposition ‘in’?
A. It indicates that something is inside a space or area.
B. It shows the direction of movement.
C. It describes a relationship between two nouns.
D. It indicates the time something happens.
Vocabulary and Grammar › View
Scientist use _ very strong telescope to help them look fat out into space.
A. a
B. an
C. the
D. any
