Question

【题目】____ an increase in foreign legal conflicts, China is expected to see the number continue to rise.
A.To witness
B.Being witnessed
C.Witnessed
D.Having witnessed

Answer 1

【答案】D
【解析】考查非谓语动词。由句意可知，主句主语是China ，和动词witness之间的构成主动关系，又由主语后的be expected to 可知，从句是先前已经发生的事情，所以使用having done。综合后选D项having witnessed。同时根据排除法得到D项。