Upon reading the notice all the staff of the company stood there, lookingat each other.

_____the temperature falling so rapidly, we couldn’t go on with the experiment[ ]

The Charles Dickens Museum in Doughty Street is the only one of his London homes to survive，______he wrote Oliver Twist.

Tony, it seems that you have been very busy all the time，what do you think of your occupation now?—Just so-soI’ve decided to quit my job in the company next month, where I ____ for five years

The children were made ________ homework two hours a day.