The headmaster will __________ a speech to the visiting foreign guests this afternoon.
| A．deliver | B．address | C．announce | D．declare |
— Could you please have my car ready today?
— Sure. The damage is not that serious, so it ______ be ready by 5:00 pm.
| A．should | B．could | C．might | D．need |
White-collar workers in China are willing to postpone their retirement age ______ blue-collar workers prefer to retire early.
| A．when | B．while | C．though | D．since |
“Got it?” Professor Smith says, “______, let’s move on to the next part.”
| A．If not | B．If anything | C．If ever | D．If so |
By accepting lower prices, organizers can sell tickets that would ______ go unsold.
| A．therefore | B．otherwise |
| C．instead | D．however |
The lack of health facilities and necessary protection for medical workers partly ______ the epidemic (蔓延) of Ebola.
| A．accounted for | B．headed for |
| C．called for | D．sent for |