When he knocked at the door, my mother was busy ____ supper.
— Mary,how did your maths test go? —I had thought I _____ ,but in fact I came in the top 10 in my class.
Rome was not built in one day.You should set _____goals and work hard to achieve them.
— Mr.Wang is a man of few words,but quick in mind. —____,you know.
.— Was it there ____you were away to answer the phone? —There is no doubt about it.
What lessons China can draw from ____global financial crisis has become____hot topic among us students.