231. In 1919, the May Fourth Movement ________, beginning with a large-scale new cultural movements in China.
| A．happened | B．broke out | C．occurred | D．take place |
Theydidn't know _________ to do with themselveswhen the project was finished.
| A．how | B．when | C．what | D．where |
The temperature in spring here can drop __________ below zero.
| A．by | B．from | C．with | D．to |
The meeting __________ three hours last night, which made us very tired.
| A．covered | B．had | C．lasted | D．referred |
If you are worried that the tickets will be sold out, you can buy one __________.
| A．in time | B．in advance | C．on time | D．from time to time |
—Shallwe go to the art exhibition right away?
—__________.
| A．It's your opinion |
| B．I don't mind |
| C．It's all up to you |
| D．That's your decision |