they are busy （studying for the test）.对划线部分提问.

They are very busy.They are study ________ exams.填介词 they are busy ----------model planes 填词 They are v-- busy(忙） They are busy p______ using computers now What are they busy 后用加doing吗?（Wat are they busy doing?) 是They are all busy and happy 还是They are all happy and busy? studying in are study they the They are busy ________ (have) lunch.They are busy to have lunch.为什么看见有写的They are busy having lunch.都是对的么?为什么? Some of ____(they) are busy with the orange picking. They are always busy with lessons.同义句 theachers often c_ they are too busy every day They are busy ____(skate ) all the morning. They are busy all day这句话什么意思 They are busy __________________________________ (为运动会做准备). These days they are busy ( ) the farm work填介词 they are a____ busy with their lesson on weekdays they are busy _______(prepar) go on vacation. 填空:1.they u__ study in the same room at home a__ shool..2.Now they are doing their homework at the t__.they're very busy 3.come i__the room and says Iwant to wacthh TV ,but I can't t__it on,Canyou come to my room and h__ me We're busy now ,L__