—We will certainly enter a good high school ________ we work hard.
—Yes. Our dream will come true through working hard.
| A．as soon as | B．as long as | C．even if | D．unless |
--He’s never visited the USA before, ________ he?
--___________. He plans to go there again next summer.
| A．has, No, he hasn’t. | B．has, Yes, he has. |
| C．is, No, he isn’t. | D．hasn’t, Yes, he has. |
Don’t get off the bus __________ it stops.
| A．after | B．until | C．when | D．since |
--How long ________ you _________ this book?
--For about one week. I ________ it from the library last Tuesday.
| A．have, kept, borrowed | B．have, borrowed, borrowed |
| C．do, keep, have borrowed | D．will, keep, have borrowed |
---Has he returned from Canada_________?
--- Yes, he’s _________ come back.
| A．yet; already | B．ever; already |
| C．already; yet | D．yet; yet |
--Where is Mr. Smith? ---He ___ Guangzhou. He ____ there for a week.
| A．has gone to; has been to | B．has gone to; has been |
| C．has been to; has gone to | D．has been in; has gone to |