---Have you brought the book I lent to you yesterday? ---Sorry, I put it on my bookshelf and _________ all about it
Susan advised me not to buy the vase, but I bought it _____.
The two top students in Mr. Green’s class competed _____ each other for the highest marks.
Everyone has periods in their lives________ everything seems very hard.
—How about camping this weekend,just for a change? —OK,________you want.
In _________to being used in industry,laser can be applied to operations in the hospital.