—You all like your English teacher?—Yeah, she devotes herself____ to teaching and it earns her a good reputation．

They’ll be here soon. ______ we’ll have some coffee.

I am not sure exactly how much money you will receive, but it will______cover your major expense.

—— How ＿＿＿＿＿＿＿＿ can you finish the drawing? —— In a week. 

The monitor said that the learning method he used         improved his maths.