71、改革,发展,稳定是我国社会主义现代化建设的三个重要支点。改革是经济社会发展的强大动力,发展是目的,稳定是( )

6) If you are willing, you can sign(up)to participate in the competition.

5) Too many students flunk(out)of the course because their math is weak.

4) They lost all their money and sank(into)desperate poverty.

3) We may define a square(as)a rectangle with four equal sides.

2) He tried to convince them(of)the safety of travelling by airplane.

1) His girlfriend is(in)denial, and refuses to admit that he will soon die.

10)Have you ever thought of going (into) teaching,George?

9) In the business world, the ability to interact (with) others is of great help to abusinessman's success.

8) Don't take it to heart. It's routine, they check (out) prospective members before lettingthem join.

7)The police arrested two suspects based (on) what the witness had said.