—Would you like to go to the dinner party on Saturday?
—Thank you. I'd love to，________I'll be out of town at the weekend.
| A．because |
| B．and |
| C．so |
| D．but |
Food will include buffalo that________________ over an open fire .
| A．roasts | B．is roasting | C．will be roasted | D．had been roasted |
New Zealand _____________the Maori tribe.
| A．is the home to | B．is home to | C．settle down in | D．is a home of |
We will have modern equipment ______ things that are complicated. This will make things simple.
| A．to assist us with | B．assist us to | C．to assist us in | D．assisting us with . |
She was happy to devote herself _________gymnastics.
| A．for | B．about | C．in | D．to |
By the time she_____体操比赛上 at the New York Good Will Games, she_________ a dedicated junior gymnast for eleven years.
| A．competed , have been | B．competes, had been |
| C．will compete, has been | D．competed , had been |