问题

In America．a friend’s inviting you to a restaurant doesn’t mean that he or she will pay for the mealyou are told in advance

A:unless
B:if
C:although
D:until

正确答案是：

同类题型

We haven’t discussed ______ yet.

Do you mind my listening music here—-_______

Why do you look so ________ What’s happening—Believe it or not, I saw a UFO just now!

If you _______ a high fever and a bad headache, you are advised to consult a doctor.

The number of students in our school _________ 4000 and a number of them _______ good at playing Ping-Pong.