The historical play put on by my classmates left a deep impression on us.Every one of us thought their show was _________ a failure but a great success.
Some students have trouble _______grammar while others have difficulty—___ new words.
We were going out for a walk ________ it began to rain.
— What did Tina say just now? — She asked ____ this summer holiday.
Bill’s fully ____ from his heart disease. He is very happy.
While____the dog,you should take care not to____.Otherwise,it may be dangerous to strangers.