You’d better leave home as early as possible, ________ you will be late for the flight.
| A．and | B．but | C．so | D．or |
I _______ the book for two weeks. I must return it to the school library.
| A．borrow | B．have borrowed | C．kept | D．have kept |
Miss Yang used _____ a farmer. Now she’s a worker.
| A．was | B．be | C．to be | D．is |
_______ is it from your home to school? It’s about 10 minutes’ walk.
| A．How long | B．How often | C．How far | D．How much |
I t’s quite common in Britain to say “Thank you” to the drivers people get off the bus.
| A．after | B．since | C．until | D．when |
—A new study proves(证明) a walk every day is enough to keep people away from fat.
| A．30-minute | B．30 minute’s | C．30-minutes | D．30 minutes’s |