36. According to some evidence, it _____ human beings _____ should take the responsibility for the ______ of this ______ species.

A. is; who; disappear; rarely　　 B. was; that; disappearance; rarely

C. is; that; disappearance; rare　 　 D. was; who; disappear; rare

35. The shirt ______ very easily. No wonder that all shirts of this type _______ out so quickly.

A. is washed; have been sold　 　　　　　 B. washes; have sold　　

C. has been washed; have been sold　　 D. washes; have been sold