1£®The more one is exposed to the English speaking environment£¬the ________  (well)he or she will learn the language.

2£®She was chosen for the work ________ the basis of her qualifications and ideas.

3£®The teacher was satisfied with ________ we had done.

4£®Almost everyone has its own strengths and weaknesses.It is ________ others are weak that maybe you have a great advantage.

5£®I'm afraid he's more of a talker than a doer£¬which is ________ he never finishes anything.