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 |
28．I had wanted to help you last night but I couldn't spare any time．for I_____an essay that is due this morning．
| A．wrote | B．had written | C．was writing | D．have written |
27．To tell you the truth，the accident and the damage______resulted in frightened me so much that I almost have given up driving ever since．
| A．that | B．it | C．which | D．What |
26．—Is there anything I can do for you?
—There seems to have been a technical problem—______，that's what they told me．
| A．somewhat | B．somehow | C．someway | D．Anyway |
25．From________seemed to be a great distance，he smiled at her，and she smiled，too．
| A．it | B．that | C．what | D．Which |
24．—Mind if I sit here?
— _________．
| A．Suit yourself | B．Behave yourself | C．Never mind | D．Help yourself |