Children under 12 years of age in that country _____ be under adult supervision when is a public library.
| A．must | B．may | C．can | D．need |
It took ______ people as well as ______ time to build the pyramid.
| A．a large number of; a great many | B．a great many; a large amount of |
| C．a great many of; large amounts of | D．a large amount of; a great deal of |
I’ve become good friends with several of the students in my school ______ I met in the English speech contest last year.
| A．who | B．where | C．when | D．which |
My mother opened the drawer to ______ the knives and spoons.
| A．put away | B．put up | C．put on | D．put together |
______ made things worse, Peter said, was that his parents stopped supporting him in developing the “flying car”.
| A．It | B．Which | C．As | D．What |
The book has been translated into thirty languages since it ______ on the market in 1973.
| A．had come | B．has come | C．came | D．comes |