—Yesterday we learnt the fifth, ________？
—I'm sorry, Mr. Li. I don't understand everything.
| A．didn't you | B．have you got it |
| C．do you think so | D．how about |
_________ seems no sense in complaining．We should take action now．
| A．That | B．This | C．It | D．There |
The TV play series The Revolution of 1911, broadcast on CCTV1 lately, is ________ the 100th anniversary of The Revolution of 1911.
| A．in favor of | B．in honor of | C．in place of | D．in search of |
Bob looked back only to find an old classmate whose name ________ him for the moment.
| A．escaped | B．missed | C．forgot | D．passed |
If better use is ________ your spare time，you’ll make good progress in doing your business.
| A．spent | B．made of | C．used for | D．taken |
Many scientists have believed that there may be a _________of life on the Mar．
| A．mark | B．signal | C．sigh | D．sign |