-Last semester, he had a hard time______ English.
—Which class sang ________ in the school singing competition yesterday?—Class 1, Grade 8.
—_________ do you go to the movies?—Once a month.
—Is Sally the most careful in your class?—Yes. So she always has __________ mistakes (错误) in the tests. And she gets the best grades of all.
—How was your vacation?—It was terrible. I had to stay at home and _________ for the tests.
—Liu Jing, did your parents give you _________ on your birthday?—Yes. They bought me a new bicycle.