The harder you work at your lessons, the greater progress you ________.
Hearing the dog banking fiercely, away _______
John plays basketball well ,_____his favourite sport is badmiton .
.Either you or one of your students______to attend the meeting that is due tomorrow.
Please do me a favour ---______my friend Mr smith to Youth Theatre at 7:30tonight.
______a certain doubt among the people as to the practical value of the project.