1 These scientists have made great c------ to sending up the satellites into outer space.
2 A large number of mouths must be fed in those less d----- countries.
3 That evening Beethoven played the music for the girl as well as u-----.
4 I phoned her s-----times,but i couldn't reach her
人气：105 ℃ 时间：2019-10-14 07:34:58
解答
1.These scientists have made great (contribution) to sending up the satellites into outer space.2.A large number of mouths must be fed in those less (developed) countries.3.That evening Beethoven play...
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