We can’t （)the suspects to be guilty simply because they’s;ve decided to remain silent.

What is the real relationship between education and economic development We have to suspect that continuing economic growth promotes the development of education even when governments don’t force it. After all, that’s how education got started. When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about anything besides finding food. Only when humanity began to get its food in a more productive way was there time for other things. The author quotes the example of our ancestorsto showthat education emerged ______. （）

A．when people had enough time

B．prior to better ways of finding food

C．when people on longer went hungry

D．as a result of pressure on government

A.fly

B.flies

C.flying

D.flied

A.we can’t judge buildings by the ancient standards

B.we can’t judge all the buildings by the ancient standards

C.we can’t judge all the modern buildings by the ancient standards

D.we can’t judge modern buildings

We can't _____ a holiday to go away this summer.

A.spend

B.pay

C.afford

D.cost

A.a; /

B.a; the

C.the; /

D.the; the