---We _____ gas. I’m afraid we can’t go much further.
----I know there’s a gas station ahead. Sure it will last us till we get there.
| A．run out | B．are running out |
| C．are running out of | D．have run out of |
The old couple have been married for 40 years and never once_____with each other.
| A．they had quarreled | B．they have quarreled |
| C．have they quarreled | D．had they quarreled |
---Did Linda see the traffic accident?
---No, no sooner _____impossible now does seem possible.
| A．had she gone | B．she had gone | C．has she gone | D．she has gone |
Never in my wildest dreams_____these people are living in such poor conditions．
| A．I could imagine | B．could I imagine | C．I couldn’t imagine | D．couldn’t I imagine |
Had I known her name，___________ .
| A．or does she know mine | B．and where does she live |
| C．she would come here | D．I would have invited her |
_______，I have never seen anyone who's as capable as John.
| A．As long as I have traveled | B．Now that I have traveled so much |
| C．Much as I have traveled | D．As I have traveled so much |