Would you consider ________ your homework first before you go to the cinema?[ ]

A．finishing  

B．to finish

C．being finished  

D．finish

我国婚姻法禁止近亲结婚，其原因是

A．基因差别大，易患传染病

B．相同的基因多，后代易患遗传病

C．近亲结婚者，多发传染病

D．近亲结婚，后代的基因易变异