問題詳情

22、Customer: Excuse me, how can I get a discount coupon?
Cashier: You can receive one by ________ for our newsletter.
(A) signing
(B) signing in
(C) signing up
(D) signing to

參考答案

答案:C

統計:A:0,B:1,C:2,D:0,E:0

難度:計算中