在下列各句的空白处填入一个适当的词, 使句子意思完整，语法正确。

1．My mother left her white ______ in the taxi. It has a few cards, a set of keys and nearly 300 yuan in it.

2．—Sam, could you ______ the flowers three times a week while I am on holiday?

    —Certainly.

3．I think doing some exercise can make you feel _______ after a day’s work.

4．—Did you learn to drive the car _____ yourself, Nancy?

   —Oh, no. My father taught me. He is an excellent driver.

5．I hardly ever buy things according to the advertisements because ______ are often confusing and misleading.