－What kind ofpersons do you prefer to make friends with?－I choose myfriends on their characters and how we ______.

The railway was opened＿＿＿＿＿＿traffic＿＿＿＿＿＿＿ April 4, 1985

It was ______the boy said he almost never did any exercise in the school______ the mother began to worry about his health.

Watching TV too much _______ bad for your eyes.—I’ll go to bed right away.

Can you tell me ___________? – An engineer from Jinan Iron and Steel Plants．