题目
题型：同步题难度：来源：
B. starts
C. has started
D. is starting
答案
核心考点
试题【The factory has helped many poor children since it _____.[ ]A. started B. st】；主要考察你对实义动词等知识点的理解。[详细]
举一反三
( ) 1. I have bought the bike for half a year.
( ) 2. This long river runs across my village.
( ) 3. We have written these reports since nine hours this morning.
( ) 4. This is very nice of you to say so, Many thanks.
( ) 5. People all over of China got to know the good news.
B. learn
C. describe
D. know