问题

_ concern about food safety seemsto be __ subject that is being discussed all over the world.

A:The; a
B:A; ／
C:The; the
D:／; the

正确答案是：

同类题型

This is the third time I ______ Beijing. The second time I ______ here was on National Day last year.

We screamed and laugh _______ the whole trip.

Have you ever _______ to bring your homework to school—Yes. I _______ it at home once last term.

Is there any ______ on the table— Yes, only a little.

．being late for the important meeting, the secretary got fired form her job