He f____ off his bike and hurt his leg yesterday.
The snake b____ my hand last week.
I go to the park once or t____ a week.
You must pay a______ to your handwriting (书写)
________ (突然) a young man ran by me when I was sitting on the grass.
The _____ (污染) in this city is much worse than it was two years ago.
What’s the _____ (温度)？It’s between minus five and ten degrees.
_____ (数十亿) of people all over the world watched the football match last night .
Bring your umbrella because it may _____ (下雨) later.
The doctor asked me to take the ______ (药物）.
Both of us do the dishes every day．（改为否定句）
us does the dishes every day．
She put the keys on the table yesterday．（改为一般疑问句）
she the keys on the table yesterday？
Mr． Smith has been in China for six years．（对划线部分提问）
has Mr．Smith been in China？
作为青少年，我们应该关爱照顾老人．
As teenagers， we should the old．
健康取决于食物、锻炼和足够的睡眠．
Health food，exercise and enough sleep．