9. [ ] Be sure to _____ about different hotels before you make a reservation.
(A) sign up
(B) ask around
(C) pass up
(D) let go
答案:登入後查看
統計: A(50), B(154), C(18), D(0), E(0) #1934911
統計: A(50), B(154), C(18), D(0), E(0) #1934911