﹣A large number of workers in the factory from the countryside.
﹣And about two thirds of them born in the 1970s.（ ）
| A． |
are；were |
B． |
are；was |
C． |
is；are |
It will be easier for people to realize their dreams if they____ highly
| A．have; educated | B．will; educate |
| C．are, educated | D．were; educated |
Everyone arrived on time ____ the traffic was so terrible.
A, if B. unless C. though D. because
-____ is it from your home to the supermarket? -About ten minutes’ walk
| A．How long | B．How far |
| C．How much | D．How many |
People ____ more and more useful things to protect the earth since Earth Day was started.
| A．did | B．were doing |
| C．will do | D．have done |
My father decided _____ any more.
| A．to smoke | B．to not smoke |
| C．smoking | D．not to smoke |