问题

The question that puzzled them is ____ they can get rid of the air pollution in the area.

A:how is it that
B:that is how
C:what is that
D:how it is that

正确答案是：

同类题型

When the tiger grow , it will grow a strong animal .

Great changes ____________ in my hometown in the past few years

It’s better for you to help others on the farm during the harvest time.—_____.

Mary was always singing high praise for her role in the office, _______，of course,made her colleagues unhappy.

Is it for two months ______ they have stayed here?-No,it is only three weeks ______they arrived here．[ ]