( ) 7.____ useful invention the computer is!A.What a B.What an C.How a D.How an

this is the ____(useful) book l bought in this bookstore. The great ____ ____ many useful things in his life.He ___ are so important for us today(invent) Which do you think is the first ____ in the world?----Computer,I think Amost uesful B useful 同义句转换Our school has a library.There are many useful books in it.Our school has a library.There are many useful books in it.Our school has a library____ ____ ____books in it. useful, useful Lucy found it useful to learn English.(同义句)Lucy found ____ ____ useful to learn English.Lucy found ____ ____ useful. Lucy found it useful to learn English.(同义句)Lucy found ____ ____ useful to learn English.Lucy found ____ ____ useful. ( ) 7.____ useful invention the computer is!A.What a B.What an C.How a D.How an 用所给单词的正确形式填空 what do you think is ____ ___ ___(useful）invention in the word. C______ are very useful animals in dsert Don't _____(worry)about yourself .2.l think English is ______(useful)among all the languages.3.The member of the people in china ____(be)/____ ____(reach) 今天就要!（ ）1.My watch is ____.I don't konw what time it is now.A.useful B.safe C.daed Dloudly( )2.----May I borrow your dictionary?-------Sorry,I have ____,but I left ____at home.A.it,it B.one,one C.it one D.one,it( )7.My friends came in,___ 英语选择,____ he gave usA.How useful advice B.what useful advice 英语翻译____ _____ ______,English is very useful. It is ____ useful book.I borrowed it yesterday. I feel it useful ____(learn) english 填learning对吗 Which is ____(useful),a car or a bike