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- Again and again the doctor_______ the crying baby girl, but he couldn’t find out what was wrong with her.
- The math problem is too difficult ,I can’t__________ .
- The teacher asks us not to _______ the garden in class .
- Aron water five days later.
- Aron ______ water five days later.
- You were out when I went to visit you yesterday.—Oh, I________ for a friend from England at the airport.
- Don’t ___________ the birds. Listen to the teacher carefully.
- Please listen to the teacher carefully. Don’t ______ the window.
- Smoking is bad for your dad’s health. You’d better ask him to ______.
- The maths problem is so difficult that none of them can .