The new teaching building ________ before the new term begins.
| A．must be finished | B．must finish |
| C．must finished | D．must being finished |
.—Can you write the number eighty-five thousand, six hundred and twenty-six?
—Yes, it is _____.
| A．85,626 | B．856,620 |
| C．58,662 | D．58,626 |
of the students boys in our class.
| A．One fifth; are | B．One fifths; are |
| C．First fifths; is | D．One five; is |
— Have you returned the library book ?
— Yes, I’ve returned it.
| A．already; already | B．yet; yet |
| C．already; yet | D．yet; already |
— the population of the U.S.A. in 2005?
— It about 296 million.
A. What is; is B. What was; was
C. How many is; was D. How many was; is
I don’t understand the text, there are few new words.
| A．so | B．because | C．if | D．though |