[ Tenses ]
The students ______ the floor when the headmistress came in.
A. were mopping
B. mop
C. have mopped
D. are mopping
Select your answer:
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Tenses › ViewI … dinner because we ordered pizza a few minutes ago.
A. am not making
B. don´t make
C. not make
TOEFL › View
Lapis Lazuli, ________ stone, hs been valued for ornamental purposes for more than 6000 years.
A. an opaque deep blue
B. is an opaque deep blue
C. it is an opaque deep blue
D. that is an opaque deep blue