We should sleep ______eight hours a day, or it’s bad for our health.A. at most B.least C. at least
He wanted to know _______
I ______ that he’s a hardworking teacher.
―Do you prefer spring ________ summer?―________, because it’s warm and flowers start to come out.
—Have you found your lost camera? —No, I haven’t found _____, but I bought _____ this morning.
-You aren’t a stranger, are you?- , don’t you remember me at the school gate ten minutes ago?