40．The book is very　　　　 ．I′m　　　　　 in it．

　 A．interested，interesting　　 B．interesting，interested

　 C．interesting，interesting 　D．interested，interested

39．一How long will you be there?　　　　　　　　　　

A．One year and one half　　 B．One and a half years

C．A year and one haft　　 D．A year and a half

38．The young mall is　　　　　 carry that heavy bag．He doesn′t need our help．

　 A．strong enough to　　 B．enough strong to

　 C．not strong enough 　D．strong enough

37．Boys and girls，please watch the jar carefully．I will　　　　　　　　 .

　 A．turn over them　　 B．turn over it　　 C．turn them over D．turn it over