--- He is a very hard-working student．
---________．As far as I know, he often burns the midnight oil．
| A．You can say that again | B．Absolutely not |
| C．Heaven knows | D．No way |
________ the whole society care for children as well as their parents, children can grow healthily and happily
| A．As soon as | B．Once | C．The moment | D．So long as |
The notice has been told everyone _______ a party will be held in the open air tomorrow.
| A．whether | B．when | C．where | D．that |
The meeting ________ in the hall tomorrow is about environment protection.
| A．is being held | B．to be held | C．held | D．being held |
_________ teachers are present today, and __________ them is 300.
| A．A great many; a number of | B．A number of; the number of |
| C．A dozen of; a great many | D．The number of; a number of |
— You don’t forget when we borrowed that reference book, do you?
— I can’t remember now but ________ sometime last week?
| A．might it be | B．could it be |
| C．could it have been | D．should it have been |