His efforts to persuade him to make a donation were ____ because he showed no intention to take a cent out of his pocket.
I remember my daughter used to ask some questions that girls ____ would ask.
—Will you please tell us how you can seize the robbers?—I will spend a whole week ____ in your room to wait for their coming.
I wish there _____ no misunderstanding on this matter.
We _____ each other the best of luck in the exam.
Alexander Grantham Bell invented ____ telephone in 1876.