66. Mrs. Brown is supposed _A_ for Italy last week.

　　A to have left B to be leaving C to leave D to have been left

　　be supposed to do sth. 应该(理应)做某事。

　　37. He’s watching TV? He’s _D_ to be cleaning his room.

　　A known B considered C regarded D supposed

　　regard as 把…认作

　　67. My camera can be _B_ to take pictures in cloudy or sunny conditions.

　　A treated B adjusted C adopted D remedied

　　treat 对待，处理; I’ll treat you. 我请客，应用于真正请客之前。It’s on me. 应用于结帐时。

　　adjust vt. 调整，调节; adopt vt. 收养，领养; remedy vt. 弥补，补救，修正;

　　68. A new technique _C_， the yields as a whole increased by 20 percent.

　　A working out B having worked out

　　C having been worked out D to have been worded out

　　yields 产量; work out 作出，推出

　　关于百分数之前介词的用法

　　increase to 80 percent 增加到80% (增加到用to)

　　increase by 60 percent增加了60% (表示增加的幅度用by)

　　55. Between 1974 and 1997， the number of overseas visitors expanded _A_ 27%.

　　A by B for C to D in

　　69. Children who are over-protected by their parents may become _C_.

　　A hurt B damaged C spoiled D harmed

　　spoil vt. 宠坏，溺爱

　　70. When Mr. Jones gets old， he will _B_ over his business to his son.

　　A take B hand C think D get

　　take over 接管接收; hand over 移交，交出; think over 仔细考虑; get over 克服，战胜。