We teachers must see to ________that every student can understand.
| A．all | B．that | C．it | D．one |
He is a man of __________ ideas and he often makes a careful plan __________.
| A．advanced; before advance | B．advanced; in advance of |
| C．advanced; in advance | D．advancing; in advance of |
—I sent him a most interesting storybook by mail this morning.
—You __________ so; he's coming tomorrow morning.
| A．needn't do | B．needn't have done |
| C．didn't need to do | D．didn't need to |
I was not __________ her presence till she spoke to me.
| A．aware | B．aware about |
| C．aware of | D．aware to |
People all over the country felt shocked __________ they heard of the news __________ eight children were killed at the school gate.
| A．the moment; that | B．when; which |
| C．immediately; / | D．the second; what |
I must apologize for __________ ahead of time.
| A．letting you not know | B．not letting you know |
| C．letting you know not | D．letting not you know |