1. Use the correct form of the verb TO BE (am, is, are).
a. I__happy yesterday.
b. My relatives__at the park having a good time.
c. He _ my best friend.
d. Mike and Helen _ excited about the upcoming concert.
e. Marystudying for her exams in her bedroom.
f. You__late for class. Hurry up!
g. It__a sunny day, go out and enjoy it.
h. They__not happy with the reault.
i. We__not ready for the test.
j. You__ the winner of the competition.
k. The cats__playing around the house.
