Please look at this book 是什么词性

Please look at this book 是什么词性 Alice,please look this book. T_____a look at this T-shirt,please Let she look at the book,please怎么错的? Look at your book,please.(变否定句） Please look _your book 连词成句.look,at,let's,book,this FoundIs this your book?Please call John at 4958456. FoundIs please look at this white one It is nice翻译 Please look at this photo.（同义句） 1 please look at this picture 改为 同义句 please look at the c.for this week