问题

Organic food is produced from crops _____ chemicals, pests and so on. In one word, it is free frompollution of any kind.[ ]

A: that is free from
B: free of
C: free with
D: which are free of

正确答案是：

同类题型

I looked under _____ bed and found _____ book I lostlast week.

each other in the newspaper

How _______ is it from Nanjing to Hongkong—It’s more than 2 _______ flight.

How ______ people are there in your family

You’re drinking too much.— Only at home.No one ________ me but you[ ]