You can come ______ on Tuesday _______ on Friday, but whichever you choose, please let me know

As neither of the two nations would _______, no agreement was reached that day.

When he heard a cry for help， he ran out as ____ as he could.

People all over the world do something good for the earth on April 22nd –– Earth Day. – Well. ______ what we should do is to make every day Earth Day.

He old woman had a letter from her son in the army_____ to her.