( )is that?回答（ )is L i lei .A：who,that.B：how old,it C：who,name D：how ,that

( )is that?回答（ )is L i lei .A：who,that.B：how old,it C：who,name D：how ,that That is a ruler 回答 Is that your sister?,回答 Is that his father?回答 who is that怎么回答 who is that?如何回答 what is this 回答 与what is that 回答 Only is that l love you that old man is very l( ) that is to say什么意思l It is likely that...的that能否省略?回答回答, that is OK是回答什么的The weather is fine 能用that is OK回答吗 who is that girl?回答是she is还是it is..可以回答she is me This book is heavy ,but that piece is l() What is that in English?怎样回答 is that your ruler 做肯定回答 Is that OK with you 的回答 Is that an eraser?的回答