A deaf-and- dumb(聋哑)man ________ some nails, so he entered a store, put two fingers together on the counter and made hammering movements with the other hand.
I regret ______ that we have no news for you.
When he saw a little boy ______ in the river, he took off his shirt and jumped into the water.
—What do you think of the book? —Oh, excellent. It’ s worth ______ a second time.
Don’t ________ women. They are as important as men for the development of society.
It is the years we spent together at college ________ have a deep effect on my life.