, the forest fire would have been discovered much earlier.
| A．But for their care | B．Had they been more careful |
| C．Without their care | D．If they were careful |
26. –Look! How terrible his situation is! Could you help him?
--I’d like to help, but ____ I can’t.
| A．fortunately | B．luckily | C．unfortunately | D．gradually |
I don’t know if he ____, but if he ____ I will let you know.
| A．comes; comes | B．will come; will come | C．comes; will come | D．will come; comes |
One of the men gave his opinion ____ what the book said was right.
| A．that | B．what | C．whether | D．which |
--It’s raining heavily, isn’t it?
--Yes, ______ yesterday.
| A．so is it | B．so it was | C．so was it | D．so it is |
I can’t go to the cinema with you tonight as I have so much work to do. ____, it is raining really heavily.
| A．Instead | B．Plus | C．Although | D．However |