believe|believed|believes|believing

很少有人相信他关于遭遇外星人的故事。

Few people ___believed his story about the alien encounter.

许多科学家相信气候变化是我们时代最大的挑战。

Many scientists ___believe that climate change is the greatest challenge of our time.

我认为记者应该完全客观。

I ___believe that a journalist should be completely objective.

迈克尔·乔丹认为帮助他人很重要。

Michael Jordan ___believes that it is important to help others.