26．—Why did all of you laugh just now？

—Tom wanted to tell us _______ very funny story, but he forget ________ ending himself.

A．the; the 　　　　　　　　　　B．a; an

C．the; a 　　　　　　　　　　　D．a; the

27．—Thank you for your help, Linda. You made _______ possible for us to finish the work in future.

—My pleasure.

A．this 　　　　　　　　　　　　B．them

C．that 　　　　　　　　　　　　D．it

28．—I am tired. This is not the right ________ to ask me to go for a walk.

—OK, we can do it later.

A．moment 　　　　　　　　　　　B．chance

C．place 　　　　　　　　　　　 D．season

29．—It’s said that _______ of the water around the world ________ polluted.

—Everyone should do anything of it.

A．two thirds; is 　　　　　　　B．two thirds; are

C．two third; is 　　　　　　　 D．two third; are

30．—I went to Taiwan last summer, and I had a good time there.

—You are so lucky, and I am looking forward to going there one day. It is a beautiful island and is ______ the east of Fujian Province.

A．in 　　　　　　　　　　　　　B．on

C．to 　　　　　　　　　　　　　D．from