--Listen! Kate is playing the piano in the next room. --It _______________be Kate. She has gone to Hangzhou to visit the Cross-sea Bridge.
—You should becareful when you take the chemistry exam. —I agree.In this way,1 will makemistakes.
—Where’s your brother,Jane? —He’s not in Chongqing these days.HeBeijing.
—How old is your son this year? —.We will have a special party for hisbirthday tomorrow.
Hethe litter on the ground and threw it into the bin.
—Must I return the book this week? —No, youYou canit for 15 days.