[ Grammar ]
. The students in the library ___ quietly.
A. works
B. working
C. work
D. is working
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Tenses › ViewDad …. while I … the plants.
A. cooked; watered
B. was cooking; watered
C. was cooking; was watering
D. had cooked; watered
Grammar › View
Recuse teams………..for people trapped in the building while the firefighters …….. to put out the fire.
A. looked/had tried
B. looked/were trying
C. were looking/ had tried
D. were looking/ were trying
Grammar › ViewMy hair was awful! I ______________ looked at the mirror before I left the house.
A. might have
B. mustn’t have
C. might not have
D. should have
Modals › View
This bill _____ be correct. It’s much too high.
A. can’t
B. mustn’t