—Can those ____ at the back of the classroom hear me?---No problem.
I’d appreciate ________ if you could let me know in advance whether or not you will come.
________ the difficult maths problem, I have consulted Professor Russell several times.
________ village where I was born has grown into ________ town.
Ralph W. Emerson would always ______ new ideas that occurred to him.
No sooner ________ stepped on the stage than the audience broke into thunderous applause.