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The sentence needs _______ once more.

　　A. explained         B. explaining        C. being explained        D. to explain

People are talking about the new play _______in two weeks.

　　A.to be put on              B.to put on            C.being put on     D.put on

 He is said ______ several books since 1996.

  A. that he's written   B. to have written          C. to be writing          D. to write

."Can you read?" Mary said _______ to the notice.

　A. angrily pointing   B. and point angrily　     C. angrily pointed   D. and angrily pointing

. _______ the office, the foreign visitors were shown round the teaching building.

　A. Having shown　 B. Showing　                   C. Has shown　        D. Having been shown

. _______ his mother, the baby could not help _______.

　A. To see ；to laugh       B. Seeing ； to laugh       C. Seeing ；laughing　D. To see ；laughing

These kids are quick at learning. We had better have them __ in a new way.

  A. having been trained   B. training  C. being trained                D. trained

________with fright, a hungry fox hid himself in a small cave, ________his tail to the rain.

A. Trembling; exposing B. Trembled; exposed    C. Trembled; exposing D. Trembling; exposed

_______the road, be careful.

　　A. While crossing         B. When cross              C. Crossed            D. Being crossed   

Whether it will do us harm remains_______ .

　　A.seen    B.seeing        C.being seen D.to be seen