People should open the window in the morning to make air ______ in order to keep the indoor air fresh.
| A．spread |
| B．remove |
| C．float |
| D．circulate |
The news of his death shocked the public, _______ to great concern about students’ safety at school.
| A．having led | B．leading | C．being led | D．to have led |
– Tom didn’t pass the English test.
-- _______. She is better than any of us in English.
| A．No wonder | B．Don’t mention it | C．Come on | D．I’m not sure |
He can speak four languages, _______ English, French, Japanese, and Chinese.
| A．such as | B．for instance |
| C．for example | D．namely |
Children under six are not _______ to school except those of extraordinary intelligence.
| A．permitted | B．admitted |
| C．accepted | D．received |
The protection of our environment is not _______ to be left to the government. Everyone should be concerned.
| A．something | B．anything | C．nothing | D．everything |