---Do you think the weather will be all right this summer?
---No, _______ we’re lucky. The newspaper says it’ll be very hot anyway.
| A．unless | B．if | C．though | D．as |
After several years, he changed a lot and looked different from _______he used to be.
| A．whom | B．what | C．which | D．that |
The teacher asked more ______to prevent the students’ eyes from being injured.
| A．to do | B．done | C．to be done | D．being done |
It was decided to _______ the search when there was no hope of finding the missing child alive.
| A．call off | B．let off | C．put off | D．round off |
The story is very interesting, and it is _______.
| A．well worth reading | B．well worthy of reading |
| C．very worthy reading | D．worth to read |
What _______to go swimming in a river in summer!
| A．fun is it | B．funny it is | C．a fun it is | D．fun it is |