The talk between the two leaders was aimedat ending the long of war between thetwo countries．

词义替换。—What do you often do in your spare time—Play basketball.

The two scientists have discovered 65 0f the more than 100 planets ________orbiting other stars [ ]

I do not doubt ________ win in the race.

The professor said that he was interested only in research; he didn’t ________ others’ comments.