几道英语选择,Our monitor,______it clear to us that he didn't want

几道英语选择,
Our monitor,______it clear to us that he didn't want to waste time playing computer games,left the Internet bar quickly.
A.made B.having made
C.making D.had made
It is no longer a question now____the Chinese astronauts can wave our national flag in outer space.
A.where B.whether C.that D.what
It is in some parts of the word_____goats,rather than cows,serve as an important source of milk.
A.there B.in which C.where D.that