Not until all the fish died in the river _____ how serious the problem of water pollution was. [ ]

The underlined part in the word “ least” is pronounced as _______.

We were so excited because we were told _________ a picnic this weekend.

If you don’t know a word, you must _______in a dictionary.

While playing ping-pong, our eyes see the ball coming, judge its speed and then hit it back ________ it should go.