Many people believe we are heading for environmental disaster _____we radically(彻底地) change the way we live.
| A．but | B．although | C．unless | D．until |
相关试题
______ production up by 60%, the company has had another excellent year.
| A．As | B．For |
C．With | D．Through |
The father as well as his three children ______ skating on the frozen river every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |
Occasions are quite rare ______ I have the time to spend a day with my kids.
| A．when | B．which | C．why | D．who |
Two middle-aged passengers fell into the sea. ______, neither of them could swim.
| A．In fact | B．Luckily | C．Naturally | D．Unfortunately |
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