This is _______ dictionary I’ve told you. Isn’t it _______ useful one

could you lend me a few dollars until I _____ on Monday

Someone called me up in the middle of the night, but he hung up ＿＿ I could answer the phone.

___ New Year’s Day around the corner,all the salesmen were trying hard to talk customers_________ buying theirgoods.

Flight attendants usually need to arrive at the airport ______ before their flight leaves