Scientists around the world are working to________ (发现)new medicine for cancer.
So far China has made great _______(进步)in space industry.
With the _________ (发展)of China, more and more people have many chances to make a tour abroad.
June is the_______ (第六个) month of the year.
Last night, I________ (交流) with my friend in America on the Internet.
If you don’t know how to take the medicine, you should read its _______/ɪn′strʌkʃn / carefully.
