In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.
| A．that some scientists say | B．in which some scientists say |
| C．some scientists say that | D．some scientists say |
Had I got to the airport earlier, I _______ you.
| A．might not miss to see | B．would not have missed seeing |
| C．should not miss seeing | D．would not have missed to see |
It’s said that _______ of the students _______ absent.
three-fifth, are B. three-fifths, is C. third-fifth, is D. three-fifths, are
Teaching year after year, he gradually ________much experience.
| A．calculated | B．accumulated | C．abandoned | D．appointed |
Do you know _______ expense the trip will be?
| A．at which | B．in which | C．at whose | D．in whose |
He worked hard. ________, he won the first prize.
| A．As a whole | B．As a rule | C．As well | D．As a consequence |