. Viết dạng đúng của từ trong ngoặc để hoàn chỉnh các câu sau. (4 câu, 1,0 điểm)

1. I'd just like to stress the _______  of politeness in this job.                                   (important)

2. She is one of the fastest _______ in my club.                                                        (swim)

3. She runs a very _______ computer business.                                                          (success)

4. There are many _______ in our new library.                                                   (bookshelf)