The changes in our chemistry lab will cost quite a lot, ____ they will save us money in the long run.
| A．or | B．since | C．for | D．but |
_______________, we don’t have much spare time at the moment．
| A．relaxing as doing sport is | B．As doing sport is relaxing |
| C．relaxed as doing sport is | D．As doing sport is relaxed |
It is the education _____ he received when studying abroad _____ has made him such an excellent manager.
| A．/ ; that | B．that ; which | C．what ; what | D．which; which |
--Mum, I’m going to visit my uncle. What about staying there a week?
--A week is too long. Try to be back in a _____ of days.
| A．number | B．dozen | C．couple | D．score |
He was driving a lorry load of bananas ____he came off the road at a bend and fell into the valley.
| A．since | B．until | C．when | D．while |
Teachers, train drivers, oil refinery workers and other French employees have _____to strike in protest of President Sarkozy’s pension (养老金) reforms.
| A．connected | B．united | C．joined | D．attempted |