If you _____ leave early on weekdays, do it quietly. The other classmates are also dying to have an early leave.

 Jack _______ swim when he was five years old. 

 Washington ______ get very hot and sticky in summertime. July and August are usually the warmest months.

You can’t imagine that a well-behaved gentleman __________ be so rude to a lady.

It is usually warm in my hometown in March, but it _____ be rather cold sometimes.