559.Yesterday my friend and I went to the supermarket nearby.We found that there was almost nothing worth ______.
A.to buy
B.buying
C.to be bought
D.being bought
560.Those programmes are usually easy ______ and not difficult ____.
A.to be received;to be understood
B.to receive;to understand
C.being received;understood
D.received;understood
559.答案是B;worth之后用动名词主动形式表示被动含义。
560.答案是B;作表语或补语的形容词后的动词不定式用主动形式表示被动含义。
