Alone in the lab on Sundays, the young scientist was so busy with his research work that he felt _____ but lonely.
__________ in her office for nearly 20 hours, she is going home to have a rest.
Thanks for your help, otherwise we would have __________ the game!
Jane __________ Betty is going abroad, so they help each other to prepare for the test.
There were nearly 3,000__________ in the concert hall.
It was the first time that I __________ the sports meeting with so large an audience.