In peace, too, the Red Cross is expected to send help to__________there is human suffering.

There were dirty marks on her trousers _______ she had wiped her hands.

— Glen, what’s your opinion?— What surprised us was not what he said but the way ____ he said it.

  Mr. Wang was such a good teacher _______ the students love and respect.

After entering university, we will reach a point in our studies       _________we need to decide how to arrange our timetable efficiently and independently.