There are some book shelves in the back of our classroom, on which are various magazines and reference books, making reading materials more _____________to the students.

older generation used to advise usnot to build ____ in the air, but that’s not realistic at all

Mr. Smith , in your eyes , ______that affects the development of China’s economy ?

I have two pens. One is red, and ________is black.

180 The monkey came down and _______ ontothe elephants back