a chemist prepares his experiments carefully before trying t
1 .The prfessor prepares his lectures carefully before tryin
think carefully before you buy a car
[-B60] He _____ his experiments and made a great contributio
John suggested his classmates _______ carefully before makin
He looked through his n____ carefully before the exam.
His math is poor,you must ________ him.A.try help B.trying t
He wasn't __with his knife and cut himself.A.carefully enoug
有英语演讲经验的过来One day,a poor boy who was trying to pay his way t
________ carefully before you answer the question. A. Think
Let me __________the matter carefully before I draw a conclu
1.Everything must-------before the event.A.plan carefully B.
John doesn't write as carefully as his sister