Foreibn students will also bring some latest high-tech things when they (9)to school at the beginning of a new term . (1

Foreibn students will also bring some latest high-tech things when they (9)to school at the beginning of a new term . (10),they often use the money which they mhich they made by themselves during the holiday to buy these high-tech things that they want .
（）9.A.returnB.leave C.return back
（）10.A.Because B.HoweverC. So