You should ___ the students instead of just telling them what to do.
A. reason to B, reason with C. explain D. say
This is an illness that can result in total blindness ________ left untreated.
| A．after | B．if |
| C．since | D．unless |
— We want someone to design the new art museum for us.
— ________ the young fellow have a try?
| A．May | B．Shall |
| C．Will | D．Need |
The little boy is dirty from head to foot because he ________ in the mud all morning.
| A．has played | B．is playing |
| C．has been playing | D．was playing |
So many directors ________, the board meeting had to be put off.
| A．were absent | B．been absent |
| C．had been absent | D．being absent |
The rainy season is coming and let’s make full use of the ________ days to dry whatever is needed to dry before the next dry season.
| A．few last sunny | B．last few sunny |
| C．last sunny few | D．sunny last few |