Oh，my God! It’s a sea of bike，How Can you your bike?—That’s easy．My brake went wrong , besides I tied a red ribbon to it.

_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate

It is true that at times the USA has experiencedperiods of_______unemployment as well as labor shortages

It will be terrible to see the nuclear war happen between U.S and Iran.— That’s right. Nuclear science should be developed to benefit the people ___ harm them.

Is that Jack speaking—Sorry, he isn’t here. He ________the cinema with hisaunt.