intricate, daze, exertion, present(2题), variety (2题) 1. We were able to thread but slowly through the _______ reports. 2. He needed to relax after the _______ of a busy day at work. 3. There was little she could do to add ______ to her daily routine. 4. Consumers ’ preferences are so _____ that planning is almost impossible. 5. When the chance to study at Harvard _______ itself, I jumped at it. 6. I must go and make myself ______ before the guests arrive. 7. I've been in a complete ______ since hearing the news.