167. Which of the following words does not belong to the same category? _____
| A．institute | B．college | C．information desk | D．Institution |
We considered him to be a true friend, ______did many others whom he had cheated
| A．which | B．as | C．when | D．though |
---I haven’t got the reference book yet, but I’ll have a test on the subject next month.
---Don’t worry. You______ have it by Friday.
| A．could | B．shall | C． must |
D．may |
I sincerely request the honor of your _______ at my son’s birthday party to be held next Sunday.
| A．admission | B．entrance | C．permission | D．presence |
The roof fell ______ the PLA men had time to rescue the child trapped in the house.
| A．until | B．unless | C．before | D．because |
When he ______ the front door, he found his keys were nowhere.
| A．would open | B．opened | C．had opened | D．was to open |