It was the first time ________ I ________ face to face with a thunder storm.
| A．when / had come | B．that / have come | C．when / came | D．that / had come |
It _______ . Some effort has been made to get DPRK to the table of six-party talk.
| A．worth |
| B．worth trying |
| C．is worth to try |
| D．is worth it |
It is reported that two schools,_______are being built in my home town, will open next year.
| A．they both |
| B．which both |
| C．both of them |
| D．both of which |
If your race car isn’t insured, you may _______losing everything when it hits something solid.
| A．delay |
| B．deny |
| C．avoid |
| D．risk |
----I’m sure Andrew will win the first prize in the final.
----I think so. He for it for months.
| A．is preparing |
| B．was preparing |
| C．had been preparing |
| D．has been preparing |
environmental damage is done, it takes many years for the ecosystem to recover.
| A．Even if |
| B．If only |
| C．While |
| D．Once |