____his membership card，Tonydecided to make a phone call to check whether there was something wrong．

I think ______ is necessary ______us to do something useful to protect the birds.

Henry has packed up his clothes, ______ he can leave here as soon as possible when his fathercomes

.Man’s shopping can be and often iscompleted in five minutes，which is less than a quanrter ________。

The salesman spent two hours trying to persuade my mother ________ their products.