1．The road was covered with a ________ (一大片) of ice.
答案：sheet
2．This ________ (地区) is calm again after last night's disturbances.
答案：region
3．The magzine will appear in a new ________ (设计) from next month.
答案：design
4．There is still much to discuss. We shall, ________ (因此), return to this item at our next meeting.
答案：therefore
5．They were playing in the ________ (浅的) end of the swimming pool.
答案：shallow
