—I called you at 8:00 yesterday evening,but there was no answer.—Oh,I’m sorry.I________dinner at my friend’s house.
I’m going to the beach _______ bus with my family this summer.
Oh, my God! I can ______ put on my trousers. I must be getting heavier.
—Could I invite my friends to my birthday party?—Sorry, you ______.
Our math teacher is very kind ______ he looks very serious.
This isn’t my sister’s skirt. ______ is blue.