—How _______ do you chat with your aunt on the Internet?—Now and then, though we don’t have much in common.
I don’t know________made Gong Li become an outstanding superstar at home and abroad.
Mother was so angry at all________I was doing________she walked out.
I’ll be late and Mother will be angry with me,but I don’t________it.
They argued________the waiter________the price of the meal in the restaurant.
—Do you often visit your friends? —________,because we are all busy with our jobs.