七年级下册英语暑假词汇、语法填空专项练习 1(1)一、用方框中所给词的适当形式填空1.His father was interested in _________ books before.2.There is _________ difficult if you work hard.3.Englishmen enjoy _________ tea with their friends in the afternoon.4.It is quite _________ and warm in spring.5. ____...