" Put on your coat，______you will catch a cold! "This is what my mum often says to me．（ ）
A．andB．butC．orD．so
— Which country has a population，China or Canada？
— China.Canada is a lot crowded than China.
A．bigger；lessB．bigger；more
C．smaller；lessD．smaller；more
If you want to be a doctor like Zhong Nanshan，hard work is the key to .
A．treasureB．beautyC．successD．health
My mother will be years old next week.I'm planning to buy a gift for her birthday.
A．fourty；fourtiethB．forty；fortieth
C．fourty；fortiethD．forty；fourtieth
The two books are about English.You can choose of them to read.
A．all；bothB．all；either
C．both；eitherD．both；neither
— Hurry up，dear! we won't catch up with the train.
— Don't worry!Time is still enough we can make it.
A．And；orB．Or；butC．And；butD．Or；and