n never forget the days we spent together in the summer camp.—Well, especially the day it suddenly began to rain in the middle of the night.

e the exit, many fans waited for the great popsinger, _______to take a picture with him.

My dad is quite busy these days. He has been working for two days without ______.

We ________ the difficulty together, but why didn’tyou tell me

Scientists have many theories about how the universe_____