【单选题】
The?( )?from?school?to?work?can be?difficult
【单选题】
Every means _______ been tried to solve the difficult problem.
【单选题】
I am[填空]?tired?that I don’t want to go out.
【单选题】
On the first day at work, he was ( ) with a difficult task.
【单选题】
______,the boy worked out the problem quickly.
【单选题】
This is a very difficult operation. It is essential that you __________ for emergency.
【单选题】
His success[填空] hard work.
【单选题】
Work hard, _________ you will fail in the exam.
【单选题】
Ill go out for a walk after supper if it____ rain.