please becareful when you are A in work B of work C on work

please becareful when you are A in work B of work C on work work hard () English A.in B.at C.on Adam began( )the book in 1960 A:work on B:working C:to work The boy finished { }in a day.A.all of work B.all work C.all The workers are busy in the factory.A.work B.to work C.worki Can you do the work ____another way?A.in B.on C.by D.with 选哪 Are you busy______your work now?A.\ B.with C.in D.about 求理由 The workers____very hard.A.all work B.are all at work C.work ：how do you go to work?A by a car B in a car C on a car D by please call _____me when you are free.A.on B.at C.for D.in 英语翻译Travel is a good actiity when you are fived of your work I work __ a children's magazine on weekends. (A.on B.in C.fo