—Mum,it’s late.Why are you still here?—Dad hasn’t come back yet.I ________ for him.A.am waitingB.was waitingC.waited
— Do you think Jim will be the new chairperson this term? — ____________. He is so unselfish(无私)
The more careful you are, _______ mistakes you’ll make in the exam.
— ________ times a week do you go to the library? — Twice a week.
Don't worry, sir. I'm sure I can run to catch up with them.A. slowly enough B enough slowly C. fast enough D. enough fast
Do you need more people _______ you _______ the vegetables?