he is said _two trips to china in the last two years

题目

he is said _two trips to china in the last two years
a,to be making b,to make
c,to have made d,to have been making

答案

选C
in the last two years表明发生在过去,排除B；trip肯定去了要回,所以是完成时,排除A,D表示去了现在还没回