—Where is our English teacher? —She is in the classroom, ________ the exercises _________ the students have done at home.
—— Hello. Is Laura there, please? —— I’m sorry, she is not here right now.Can I take a_____?
He gained his___by printing___of famous writers.
Here’s my card. Let’s keep in_____.
We have worked out the plan and now we must put it into___.
Three-fourths of the surface of the earth___sea.