One of her achievements is helping us understand _________ chimps ______ like humans.
—What’s that noise? —There’s a truck stopping outside. It’s someone _____ something.
Remember me to your parents when you _____ them.
_____ time, the teacher had us do half of the exercises in class and complete the other half for our homework.
When _____ about one of the biggest concerns today, many citizens mentioned the sharp rise in housing price.
The purpose of the article is to draw public attention _________ the problem.