--- Excuse me, may I come in?--- Not yet. Please wait on your chair _____ your name is called.
Tom is very short . So he sits _____the classroom .
He ____ ever ______ (be) to the History Museum several times.
–____ delicious food! –Yes, and __ nice it looks!
–Can you teach __ English? –Sorry, I can’t, but I can teach you__ swim.
I can’t believe __ a little girl can carry ___ many books.