Is this a clock?回答

Is this a clock?回答 What's this in English?It is a clock回答中为什么不能会所this is a clock This is a clock in English 对a clock提问 this is a clock变成一般疑问句 This is a clock改为否定句 The two students 14 years old What's this inEnglishi?it ( )a clock 用IS .AM .ARE 回答 This is a clock.(改为一般疑问句） This is a clock.用whach 改为选择疑问句 This is a clock.(改为一般疑问句)怎样做 This is a alarm clock 这个句子哪里错了?.. this is an a（ ） clock 如何填空? This is( )clock.l's（ ）old clock.This is( )clock.l's（ ）old clock. Is this a boy?回答 “Look!This is a clock.It has two hands,One is long,the other is short. This is a clock.__face is brown.A.It's B.ItC.its D.It this is a clock .it can tell us time（改为含有定语从句的复合句）this is a clock ___________ __________ tell us time. this clock is about 100meters是什么意思 what is this,回答有没有a