问题补充：
It is because he science that I what he says.
A. believes in; believe
B. believes; believe in
C. believes; believe
D. believes in; believe in
答案：
A. believes in; believe
(答案→)B. believes; believe in
C. believes; believe
D. believes in; believe in
解析：可联系答.案.网客服索取。
