A. in B. on C. with
A. in B. on C. to
A. a B. an C. the
A. introduce B. introduced C. introduction
A. Thursday B. Friday C. Saturday
A. 3rd B. 5th C. 7th
A. June B. July C. September
A. in the eleventh century B. in the tenth century C. in the eleven hundreds
微信支付 
支付宝支付