She couldn’t stop ________ when he told her the funny joke.
There are many differences between American English and British English in spelling and pronunciation, especially in _____ English.
—Hi, Jane, tell you a piece of good news. I _____ America tomorrow.—Wow, have a good trip!
After Mr. Brown _______ smoking, he didn’t cough any longer.
A cellphone _____ a camera by most young people in China.
Although we have learned English for 3 years, we still have trouble _____ the new words.