The Great Wall is familiar ______ many foreigners. [ ]

Why didn’t you go to play football with us yesterday afternoon? —I _____my mother with the housework then.

Miss Li has taught ____ English for about 3 years.—You are lucky. ____ is a very good teacher.

Everyone has his own dreams, but not all the dreams can always _________.

Jack, could you help me ________ these pictures on the blackboard? It may help us know more about the hazy weather. (雾霾) — With pleasure.