________ it rain tomorrow, we would have to put off the sports meeting.

中华民族的文化遗产浩如烟海，二十四史乃是中华文化遗产的精华，而“前四史”， 是二十四史中的精华。“前四史”是指：（ ）

Gary Locke , a Chinese-American, once______ as the governor of Washington for 8 years and now is U.SCommerce Secretary

My sister met him in the hospital yesterday afternoon, so he _________ your lecture.

－Canyou go to school in other clothes－No. We_______ to go into the school unless we are in school uniforms.