【单选题】Exercise: Choose a proper phrase in its appropriate form to filleach blank in the following sentences. pay for pay back pay into pay out 1. I _______ a lot of money for that car.
【多选题】The main purpose of this letter is to______.A.introduce the library's service to readersB.recommend new books to the readersC.send a few catalogues to readersD.express thanks to the readersE. how to u...