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1.student will have to clean the school yard before the school year
=> the school yard_________________________________________________
2.parents often make children study hard before exam
=>children___________________________________________________________
3.the last time we wrote to each other was last year
=>we have_________________________________________________
4.I am not a millionaire ,so I can't travel around the world
=> if I________________________________________________^.^
5. the teacher will correct exercises tomorrow
=>exercises____________________________________________
6.they have just sent an ambulance to the school
=> an ambulance _____________________________________
7.unless he phone immediately, he won't get any information
=>if he_____________________________________________________
8. no one is making efforts to protect our environment
=>efforts_________________________________________________
9.Trung is often late for school; therefore, he will be punished by his form teacher
=>if trung ___________________________________________________________________________
10. ba has planted these trees in the garden for a long time
=>these trees____________________________________________________________
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Sinh Học lớp 12
