—Hey, Jack. You ________ on the phone just now. But you weren’t here and the man left a phone number.—Oh? I was in the library.
---Your mother didn’t go to work this morning, did she? ---______Though she was not feeling well.
He is too tired ______ any more.
I had a little trouble English grammar.
I need time_____ my computer.
_____should not be allowed to go out at night.