Where is Sam?He------ for Japan 为什么是has left

Where is Sam?He------ for Japan 为什么是has left Where is Sam?He is---a trip. 英语翻译Sam的家人正在吃饭。这句话我主要想知道用are还是is第二句话主要是Where has he gone?还是W 这个句子为什么是助于从句啊.where he has gone is not known yet.where 为什么是主 Next is Sam ,and he has been skating for four hours 一道英语单项选择Next week the man _____ for Japan.A、leave B、has left -where is Tom -he has gone to America for _____(far) study 英语翻译Is that Sam No,that's Tom.he has shorter hair than Sam.a 为什么是he has been dead for 10 years而不是he has dead for 10 years He __his home for ten years.a.has left b.left from c.has bee He__[has left/has been away/left]for two months.I hope he wi It is where you left it为什么不说it is there where you left it