My command of English is not ____ yours.

Set down your pens when you hear the bell rings, ____ you’ll be against the rules.

I will visit you if I am available this weekend.

对下列文言句子中加点词语的相关内容的解说，不正确的一项是

My parents live in a small village.Theyalways keep candles in the house___there is a power cut.