1. [单选题]The population of Jiangsu __ to more than twice what it was in 1949. The figure is now approaching 74 million.
A. has grown
B. have grown
C. grew
D. are growing
2. [单选题]What can we say about the discovery of Mangrove Rivulus?
A. It was made quite by accident
B. It was based on a lab test of sea life
C. It was supported by an American magazine
D. It was helped by Patricia Wright
