Without gravity, we _____ walk on the ground as freely as we do now. 

At last the boy was made      and began to laugh.

 --- You didn’t tell your parents the date of our graduation ceremony, did you? --- No, but I ____. My sister had told them.

It is required that under no circumstances ______ betray ourselves even if there are temptations like money or beauty.

I looked everywhere for the book, but I ______find it