— I am very worried about tomorrow’s chemistry test. I’ m afraid I can’t pass this time.— ! I’m sure you’ll make it.
—Hey, Molly. You ______ on the phone just now. —Oh, I was in the library.
—Do you think the rain will stop tomorrow ? —I hope so. It ______ for three days. It's too bad.
—Whose T—shirt is this? Is it John's? —It ______ be his. It's too small for him.
—What do you often do ______ classes? —We often do eye exercises, do some running or talk with our friends.
—Did Jimmy and Cindy come to your birthday party, Gina? —I had invited them, but ______ of them showed up.