[ Grammar ]
When you are on duty (đang trực), your uniform ……………..at all times
A. must be worn
B. must wear
C. must have worn
D. must have been worn
Random Topics:
Sentences vs Run-OnsTenses and Word FormationNouns FormationPronouns ( Interrogative )Passive Voice in Past and Present TensePassive Voice Present SimpleProgessive TensesConjunctions and CommasPresent Simple Affirmative and NegativeIN, ON & ATOther quiz:
Irregular Verbs › ViewMum taught our sisters how to cook, but she didn’t ______________ us.
A. teached
B. teach
C. taught
Grammar › View
(Preposition) May I sit between you two?
A. between
B. you
C. two
D. may
Second Conditional › ViewIf people lived on the moon, I ___ ____ there.
A. won’t live
B. will live
C. would live
D. don’t live
Grammar › View
He ______ about to give up his job when they offered him a rise.
A) was
B) is
C) has been
D) had been