The more ______ we take the safety standards, the further we can speed up the development of the school bus industry.
| A．constantly | B．generally | C．seriously | D．immediately |
—Shall I pick you up after the meeting is over?
—Thank you. ________.
| A．If you insist | B．It’s up to you |
| C．It all depends | D．It couldn’t be better |
—Mom, today I received a message telling me to send money to the account.
—Delete it. It’s a trick. Many a person ________ by such tricks.
| A．have been cheated | B．were cheated |
| C．has been cheated | D．was cheated |
So sudden ________that the residents had no time to escape.
| A．was the earthquake | B．did the earthquake |
| C．the earthquake did | D．the earthquake was |
— How long will it be _______ the president pays another visit to China?
— It all depends.
| A．before | B．until | C．since | D．when |
Look! the ground is wet. It must have rained last night, _______?
| A．hasn’t it | B．didn’t it | C．mustn’t it | D．hadn’t it |