He is a shy man,___he is not afraid of anything or anyone.
You may use the room as you like ____ you clean it up afterwards.
— I saw a lovely alien(外星人) near the New Bridge Airport last week?— _______ There is no such kind of creature at all.
—What shall I do next?—You’d better finish your chemistry exercises ______ I can take you to the cinema this evening.
In our country, we all get ____ by the month. I’m always the first ___ my salary every month.
—Mr. Smith has returned home from China?—We really miss him! He _______ in our university for 8 years.