[ Expressing Obligation and Modals ]
We ….. collect our project by tomorrow to get A in Biology.
A. Must
B. Shouldn’t
C. Mustn’t
D. Can
Select your answer:

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Grammar › ViewIf the weather ___ nice, we will have a barbecue.
A. is
B. was
C. are
D. were
Helping and Linking Verbs › View
What is the linking verb in the following sentence: They are silly together.
A. together
B. silly
C. are
D. They
