The rain came to a stop the night before.The fields are still full of water.　—It _________for nearly a week.

Who helped you clean the classroom yesterday— Nobody. I did it all by ____.

Doctors recommend that all children ________ vaccinated against measles(麻疹).

The country itself didn’t have enough gas because of the war, so the government decided to _____ its gas supplies to other countries. [ ]

Our math teacher ________ to our school at the age of 20 and she ________ in our school for more than 30 years.