students are busy doing some （ ）（review）for the test 填review还是reviews,为什么?

all the students are busy------(do) a lot of things. What are you busy ____(do). The students are busy with their homework 同义句转换 The students are busy doing some_____for the final exam.(review) The students are busy ___(listen) to the teacher. The students are not busy this afternoon同义句 most.of.students.are.busy.cleaning.the.classroom求翻译 The students are busy leaning English 同义句 a lot of students are busy 中文意思 a lot of students are busy ------- their homework-----------------sunday填空 同义句转换.The students are busy learing English.The students are ( ) ( ) English. Students in Grade Nine are busy and (h ) haveStudents in Grade Nine are busy and (h ) have time to relax. The students are busy__(do)some exercises The students are cleaning the classroom.They are busy.(合并成一句） The students are busy with their homework all the time.(同义句)The students are( ) ( ) ( ) their homework. THE STUDENTS ARE BUSY WITH THEIR HOMEWORK ALL THE TIME同义句.the students are ____ _____ _____their homework. Are you busy now?No,Ihave n____ anything to do. We are busy ____(do) our homework this afternoon.