There are plenty of jobs____in the western part of the country
________with the size of the whole earth,the biggest ocean does not seem big at all.
We should consider the students’ request ________ the school library provide more books on popular science.
I believe the teacher's explanation will ________this puzzling problem.
The famous artist said that his success was ________his hard work and perseverance.
________the latest estimates,insects account for probably 4 to 6 million of the species of creatures living on the planet.