Swimmers must be very strong in order to build up speed because of the high resistance (阻力)of the water. Runners,__________, must struggle against the heavy resistance of the air and ground.
A.generally |
B.similarly |
C.naturally |
D.probably |
The computer system _____ suddenly while he was searching for information on the Internet.
A.broke down | B.broke out | C.broke up | D.broke in |
Cycling is highly _____ to people’s health and the environment.
A.fashionable | B.beneficial | C.changeable | D.suitable |
I recognize her __I met her at the airport, although we haven’t seen each other for ten years.
A.the moment | B.in the moment |
C.for the moment | D.at the moment |
Unless ________ to speak, you should remain silent at the conference.
A.invited | B.inviting | C.being invited | D.having invited |
_____ in Haikou for five years, he is not used to the weather in his hometown.
A.Live | B.To live | C.Having lived | D.Have lived |