A. searching B. strolling C. crowding D. wandering
A. assist B. track C. sustain D. dismiss
A. predicts B. displays C. proves D. discovers
A. France, Russia and the United States. B. The United States, Britain and Russia. C. France, Britain and the United States. D. France, Britain and China.
A. raise B. add C. take D. keep
微信支付 
支付宝支付