―Howcanweenterthatstrangehouse? ―Oh,it’snotdifficult.Lo...

問題詳情：

―How can we enter that strange house?

 ―Oh, it’s not difficult. Look, there         a front and a back entrance        the house.

       A．is; to                   B．are; to                 C．is; for                 D．are; for

【回答】

知識點：主謂一致

題型：選擇題