Every year, we ______ a school trip to Zhou Enlai Memorial Hall.

There are lots of things _____ I need to prepare before the trip.

So I rudely replied, “You’ve dialed the wrong number! ” and then ________.

Qian Xuesen is known as China’s “father of space technology” and “king and rockets”.He died_____ October 21 at the age of 98.[ ]

We all _______thanks to our dear mother on Mother’s Day.