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Use the verbs in the correct form to be (is/are)
9.Mathematics ______ my favorite subject.
10.These deer ______ in danger
11.How much ____ the pair of jeans?
12.Two years ___ a long time to look for a job
13.My clothes _____ wet
14.The contens ____not changed
15.Measles ___more dangerous for gworn-ups than for babies
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