He apologized for _____.
—Does Lisa have a new hairstyle?—Yes.In fact,it is quite similar ________yours.
________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.