题目内容
The train CRH380A, _____ trial operation on the Shanghai-Hangzhou high-speed railway, set a speed record
of 416.6 kilometers per hour.
of 416.6 kilometers per hour.
[ ]
A. started
B. to start
C. starting
D. being started
B. to start
C. starting
D. being started
C
练习册系列答案
相关题目