Have you returned the book to the library _______ —Yes, I have _______ retuned it.

When people mention planes,it will remind the parents_______ their daughter on the Malaysian Airlines plane MH370.

All the clerks went home _____ Mr. Wang, for he had to finish his work.

下列加横线实词解释错误的一项是：（ ）

Team leaders must ensure that all members ______theirnatural desire to avoid the embarrassment associated with making mistakes.