The traffic on the main streets has a longer green signal than______ on the small ones.

 I made a call to my parents yesterday, but _______ of them answered it.

I didn’t have _____ to say, so I said _____. 

An average of just 18.75cm of rain fell last year, making ______ the driest year since California became a state in 1850.

There must be _____ book which could help .