1. We held a _________(庆祝活动) to celebrate the National Day.
2. It took her a long time to _________ (使适应) herself to the new environment.
3. You must confront these difficulties with_________ (勇敢).
4. The poor weather may _________ (解释)for the small crowd.
5. Let me _________ (祝贺) you on the birth of your daughter.
