把下面的句子翻译成汉语。14分
(1)How old are you? _______________
(2)How about you? _______________
(3)Come in, please. _______________
(4)Look at the clock, please. _______________
(5)What’s the time? _______________
(6)There are twenty books. _______________
(7)What’s your name? _______________