There is ____ “u” and _____ “r” in the word “number”.

Are Mr. and Mrs. Wang living alone in the house? —Yes, they have three sons, but ______ of them live in their own houses.

Mr. Green _______ to Beijing two weeks ago. He ______ there many times.

You can improve your English reading more.[ ]

Li Ming goes to school ______7:20 ______ the morning.[ ]