The Russian rocket designer has died. For many years, he ______ as an important assistant to the father of Soviet space program. A. serves B. was serving C. served D. has served为什么选C

32.The Russian rocket designer has died.For many years,he ______ as an important assistantThe Russian rocket designer has died.For many years,he ______ as an important assistant to the father of Soviet space program.A.serves B.was serving C.served D. The Russian rocket designer has died. For many years, he ______ as an important assistant to the father of Soviet space program. A. serves B. was serving C. served D. has served为什么选C 火箭 THE ROCKET怎么样 Rocket rocket The Wanted的《Rocket》 歌词 求The Wanted - rocket中文歌词 英语翻译Over the past two decades,three much smaller satellite crashes have occurred,Stansbery added.In 1991,a nonfunctioning Russian satellite.Five years later,a French satellite called Cerise collided with the body of a french rocket. I ___ the Rocket Club two months ago.A.join B.joined C.joins D.joining Russian Russian In____Marx began to learn Russian.C.the year of 1870D.the 1870's How many___are there in the international villageA.Chinese B.Russian C.American D.German we hope the space rocket will（）safely on the Mars .A.land B.send C.meet D.kid Aar Of The American Rocket Society the rocket summer的《Colors》 歌词 A rocket can fly in the the book ()the computer was written by bill gatesA about B for c sitting D sits when is the best time ()plant vegetableA on B in C for D to同义句转换This year i joiner a rocket club I ( )a ( )of the rocket club this yearshall we make a rocket( )