We are a little worried because we the ground as a leader in the field of IT with the others speeding up development．
A. are losing
B. were losing
C. lost
D. have lost
网友回答
(答案→)A. are losing
B. were losing
C. lost
D. have lost
解析：考查时态：句意是：我们有点担心，其他人在快速发展而我们正在失去IT领域领导者的地位。可知是正在失去，用现在进行时，选A。