Overtheyears,whilefocusingonitsowndevelopment,China
来源：语文精选馆 1.01W
问题详情：
Over the years, while focusing on its own development, China _____ aid to the best of its ability to other developing countries with various difficulties.
A. provides B. is providing C. has been providing D. will provide
【回答】
C
知识点：动词时态与语态
题型：选择题
