.—Mum , I have finished my homework while you were out.
--_____a good boy.
| A．It’s | B．How | C．This is | D．That’s |
The students running on the playground are all in their uniforms, so it’s hard for you to_____ my sister in them.
| A．take up | B．take out | C．pick up | D．pick out |
As you see , the number of cars on our roads________ rising these days.
| A．was keeping | B．keep | C．keeps | D．were keeping |
Only when I left my parents for Italy ________ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realized |
Up to now, he _______ most of the works by Mark Twain.
| A．is reading | B．has read | C．will read | D．reads |
At the meeting they discussed different ______ to the study of mathematics.
| A．approaches | B．means | C．methods | D．ways |