问题

It is said that the early European playing-cards ______ for entertainment and education.[ ]

A: were designed
B: have designed
C: have been designed
D: were being designed

正确答案是：

同类题型

Teachers should be able to give _____ instructions in class. [ ]

下列有关文学常识的表述，不正确的一项是（）

Look! What are those boys doing ______ the table?—Well, they are playing cards

My best friend often a funny joke and always makes me .

You could talk about it with Jack _______ the phone.