The silence in the dark building was scaring. No sound and voice____ heard at that moment.
.The police an organization which protects the public from harm .
.Don't worry.We can the liar by the way he or she acts..
——It's too hot today.Will it rain tomorrow? ——I would rather it tomorrow.
To be honest,the scientist to unknown to me.
.——I'm sorry to have broken your pen.I didn't mean it. —— .I've got a new one.