问题
English is___ useful language because people in many countries are using it.
A:a
B:an
C:the
D:/
B:an
C:the
D:/
正确答案是：
同类题型
I must be off at once. I’m late.— You ______ to the school because today is Sunday..
In the nineteenth century, English became international language.
It is not impossible _the important work on time.[ ]
The box is too heavy to carry. What’s in it?—Oh, it is ________ books.
Could you tell the differences _____ these two words? — OK, let me have a try. [ ]