The scientist’s many years’ careful observation ____ a surprising discovery.
| A．ran into | B．began with | C．led to | D．came from |
Can you think of some cases ______-people are likely to tell lies?
| A．that | B．as | C．where | D．when |
—Shall we go out for a walk?
—Sorry. I’m too busy to ______-for the moment.
| A．get away | B．get off | C．get through | D．get together |
The 2008 Olympic Games,_______in Beijing, impressed the world deeply.
| A．to be held | B．held | C．to held | D．holding |
—John and Lucia got married last week. Did you go to their wedding?
—No, I _________a lecture in another city.
| A．gave | B．have given | C．had given | D．was giving |
—Could you do me a favor to hand out these papers?
— ___.
| A．Yes, I could | B．It’s my pleasure | C．With pleasure | D．Great |