问题 填空题
选择方框内适当的词,并用其适当形式填空。
five     help     possible     own     her
1.It's _______ for teenagers to know a little bit about first-aid.
2.I hear Sarah lives on the _______ floor of this tall building.
3.Your daughter is so young that you can't leave her at home by _______.
4.Huang Yue's father is the _______ of this shop.
 5.Use "might" or "could" to show that you think something is _______ true.
答案

1. helpful  2. fifth  3. herself  4. owner  5. possibly

单项选择题
单项选择题