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____ we went those days when we were in the countryside, we were warmly welcomed.

The boys are still playing basketball happily on the court ______ it is raining heavily.

The police set about arresting the suspect ______ they found enough evidence to prove him guilty.

—What made the applicant so anxious?
—_____ he will get a job interview tomorrow．

We should consider the students’ request _____the school library provide more books on popular science.

When the news came ___ the war broke out , he decided to serve in the army.

---Do you often stay up?
---No. I always get a good night’s sleep _______ much work I have to do.                         

The question came up at the meeting _______ we had enough money to change the environment

Many experts stick to the view _____ teacher development is the key to the education quality.

Safety in school has been of great concern because of the frequent reports ____ students got injured or killed while in school.