I won’t call you, ________ something unexpected happens.
| A．unless | B．whether | C．because | D．while |
——The switch to more low-carbon energy, I think, is _____.
——I agree with you.
| A．in a way | B．on the way | C．by the way | D．in the way |
Many a student ____ going to have themselves ____ in the hospital.
| A．is ; to examine | B．are ; examine | C．is ; examined | D．are ; examining |
Three minutes earlier ____ we could have caught the early train to Philadelphia.
| A．or | B．but | C．and | D．so |
Many people have been ill from a strange disease these days, _____ we’ve never heard of before.
| A．it | B．that | C．one | D．this |
In Scandinavian countries it is common ____ for the husband to stay at home to look after the baby.
| A．use | B．practice | C．sense | D．idea |