—________ does he often go to Beijing?
—By plane.
| A．How | B．When |
| C．Where | D．Which |
-- Is it your brother playing football outside?
-- It ________ be him. He is helping mother with dishes now.
| A．must | B．can’t | C．mustn’t | D．can |
--Have you finished your work yet?
--Yes, I have . It ____________ half an hour ago.
| A．has been finished | B．finished | C．was finished | D．has finished |
Money is important _____ it’s not the only important thing in our life.
| A．because | B．so | C．but | D．and |
I have to work hard _____ the test.
| A．pass | B．to pass | C．for pass | D．passing |
Please send ______ my best wishes when you go to visit your grandparents.
| A．their | B．they | C．them | D．theirs |