—Be quick, please. I have to be there by 9:00— , but I’ll try my best.
The teacher told the student to go back ________ he sat.
--Did you watch the football match last night? --No, there was something wrong with my TV and it couldn’t ________ any programs.
The tower clock was ________ eleven when I was walking towards home.
A dark cloud is a ________ of thunderstorm.
________ the Internet is bridging the distance between people, it may also be breaking some homes or will cause other family problems.