According to the survey, two thirds of the area__________covered by trees now and 90% of the population__________contributions to the Greening Project in the city.
Without electricity human life ______ quite difficult today.
Little Johnny felt the bag, curious to know what it _______.
— I’m still working on my project. — Oh, you’ll miss the deadline. Time is ______.
We hadn’t planned to meet. We met ______ chance.
Everyone in our class likes Mary because she is good at telling and ______ jokes.