— Do you mind if I close the window?

— _______. We should let in more fresh air．

A．Yes, go ahead．

B．Of course not

C．I would like to close it

D．I’d appreciate it if you didn’t

問９　この部屋の［38］しつどは［39］つねに一定だ。

つねに　　　　

A．等に

B．　常に　

C．主に

D．毎に