The valley was so deep that it had been ten seconds _________the stone feel off to the bottom.
A since B before C when D until
The students _____ are hard-working and ready to help others should be praised.
| A．who | B．whom | C．which | D．whose |
—What’s the noise outside?
—Some children_____ hide-and-seek in the yard.
| A．were playing | B．are playing | C．have played | D．played |
----What do you think of my article, professor?
---- The former part is well written but __________ is just so-so.
| A．the latter | B．the last part | C．latest | D．later |
Much to our joy, John was finally __________ to join in our adventurous journey.
| A．advised | B．agreed | C．hoped | D．persuaded |
What on earth did you tell her? The __________ on her face suggested that she was more than angry.
| A．impression | B．sight | C．appearance | D．expression |