There might be life on other planets, bu
题型:选择题
问题:
There might be life on other planets, but so far scientists haven't found enough ________ to prove it.
A.evidence
B.relic
C.mystery
D.reception
There might be life on other planets, but so far scientists haven't found enough ________ to prove it.
A.evidence
B.relic
C.mystery
D.reception