题目
They were _ a communication satellite.A. successful launchB. successful in launchingC. successful to launch
They were _ a communication satellite.
A. successful launch
B. successful in launching
C. successful to launch
题目解答
答案
B. successful in launching
解析
本题考查固定搭配。句意:他们成功发射了一颗通讯卫星。be successful in doing sth. 成功做某事。