The students couldn't help ______ when they heard the joke.
A. to laugh B. laugh C. laughing
找出不同类的一个单词。
（）（1）A. riceB. wantC. look
（）（2）A.noodles B. milkC. dumpling
（）（3）A. potato B. tomato C. nice
（）（4）A. eggs B. flower C. tomato
（）（5）A. ten B. helpC. five
（）The kids are listening _______music.
A.in B. to C. on
（）—What are they_______?
—They are drinking soya milk..
A.drinking B. drink C. drinks
（）They’re _____taijiquan.
A.doesB. do C. doing
（）Look!The horse is ____.
A.run B. runningC. runing