Tim's English was very poor when he came to England,so he couldn't make himself understood.这里为什么用understood而不用understand

Tim,____ what's that in English? English!～对话填空John Gates is Anne Miller's new friend.Last week,Anne invited John to visit her house and offered him a good meal which was cooked by herself.J:Oh,Anne,that was a wonderful dinner.That's the b____(1) meal I've had in a long tim Tim's English was very poor when he came to England,so he couldn't make himself understood.这里为什么用understood而不用understand Whose English is better,____?A.Tom or Ttim B.Tim's or Tom's为什么 连词成句.（1）Tim,is,English,that,teacher,and,Tom's(?) 补全英文对话Tim,___ what's that in English 扩号里应填什么?Hi Tim.What's this＿＿＿English? take one's tim it's tim's复数 Tim is an English boy.Every year,he and his parents go s( ) nice on their holiday. It's the best book on English pronunciation I've ever seen中 I've ever seen是补语? It 's tim ______ lunch. Tim Burton's The Corpse this is a picture (1)_____Tim's family.The man is Tim's (2)_____.The (3)_____ next to Tim is (4)_______ mother.(5）_______is an English teacher.Tim's (6)______are also (7)______the picture .They are (8)_______,but they are healthy.Tim loves (9)_____ Tom enjoys English,Tim enjoys English too的同义句 请问选 A还是B?这里的could可以算是过去式吗?Could you tell me ____?He is wanted by the head teacher.Sorry,I've no idea.But he ___ here just now.A:where Tim was,was B:where Tim is,was 1．--- Where have you been,Tim?--- I’ve been to ______.A.the Henry house &1．--- Where have you been,Tim?--- I’ve been to ______.A.the Henry house B.the Henry family C.The Henry’s home D.Henry’s为什么选D Who was T.S.Eliot?please answer use English.