妈妈，别忘了明天早上6点钟叫醒我。

Mum,don't forget ________ ________ ________ ________ at six tomorrow morning.

我们正在寻找那条钥匙。

We ________ ________ ________ the key.

air, the, clean,cool,trees,keep, can,and（.）

___________________________________________________________________

apologized,led, Charlie, John, room, to, the, receptionist,and, and, their (.)

___________________________________________________________________

wine,to,excellent,grow, farmers ,grapes，make (.)

___________________________________________________________________

friends,will, we, hope, I, remain,always (.)

___________________________________________________________________

animals,and,move, through, bears, other, quietly,forests,tigers (,.)

___________________________________________________________________

Look, the old man who is playing ________ piano is from ________ European country.

A.the; an B./; an C.the; a D./; a

Most boys _______ blue to pink while most girls _______ wear pink than blue.

A.would rather, prefer B.prefer, would rather

C.would rather, would rather D.prefer, prefer

—What's wrong with your uncle?

—We're sure____ something is wrong with him, but we doubt_____ the disease can kill him.

A.if; whether B.that; that

C.whether; if D.that; whether