____ the days he had spent with his American friends, he couldn’t help_____. [ ]

How much ______ the blue socks—_________ three dollars.

The Education Department says that school safety has set off alarm bells with frequent reports of serious accidents ________ students got injured or killed.

The socks cost _________ much _________we didn’tbuy any.

mputer was used in teaching As a result,not only __________ , but students became more interested in the lessons