—Are you going to help him?
—Why ___ I help him? He' s never done anything for me．
| A．would | B．could | C．might | D．should |
With a lot of problems , the VS troops are having a hard time in Iraq.
| A．settled | B．being settled | C．settling | D．to settle |
16. ---The farmer president was caught at last.
---Really? Where himself?
| A．had hidden | B．has he hidden | C．was he hidden | D．has he been hiding |
Turn off the tap please. The water .
| A．was wasted | B．wastes | C．is wasting | D．is wasted |
I can guess you were in a hurry. You your sweater inside out.
| A．had worn | B．wore | C．are wearing | D．were wearing |
Glad to see you back. How long in Russia?
| A．did you stay | B．have you stayed | C．were you staying | D．have you been staying |