This is the biggest lab__________we have ever built in our university.

They ______ him to prepare for thecoming exam, but he spent all day playing computer games.

﹣Don’t be angry with your kid when he makes a mistake again，will you﹣No，I won’t．I know that ______of us are perfect after all．

or little boy longed for a pretty toy train,______ his father could never afford.

Haven’t you finished your report yet? — How I regret ________ the weekend _________ TV!