China is developing rapidly. —Yes, to make our country more prosperous, we should firmly the principle of scientific development. [ ]

It was not until near the end of the letter ____ she mentioned her own plan.

同学邀请你去踢足球，你表示同意，你应该说 ____________。

______ are your family going this summer holiday—To Dalian. We’ll stay there for a week.

Three problems are too hardto . Will you give me some advice? —-There are many ways. Themostt important is to have a careful plan.