—____, Tom. Is this your book? —No, it isn’t. I think it’s ____.
childrenSimonand Jimare!They help Mrs.Licleanthe houseevery day.
CaoWenxuan’s newbook hasjust . Let’s goand buy one.
Thisschoolbag is notexpensive.Andtheprice ofit is the of the three.
—Dad,mustIpractise thepianotoday? —No,you _.You may doit tomorrow.
Youwillfallbehind others youwork hard.