In much of the animal world, night is the time ____ for sleep —pure and simple.
A.set aside | B.set down | C.set off | D.set up |
The audiencewhen they watched his funny performance.
A.burst into laughing | B.burst out laughter |
C.burst into laughter | D.burst in laughing |
Every day we are using so many raw materials which _________that they _________.
A.are running out; will be used up |
B.are being run out; will run out |
C.have run out of; will be using up |
D.have run out; will run out of |
_______the fierce competition in finding a good job in big cities, many fresh graduates are still trying their fortune in Beijing.
A.Apart from | B.Regardless of |
C.Instead of | D.With regard to |
______ the Internet is of great help, I don’t think it is a good idea to spend too much time on it.
A.Unless | B.Since | C.When | D.While |
The first World Cities Day of the UN, _______on Oct.31, 2014 in Shanghai, focused on leading urban transformation.
A.to have been held | B.having held |
C.held | D.being held |