With his horse ____to the tree, the man had a rest in the shade.
| A．tying | B．tie | C．being tied | D．tied |
secure
| A．official | B．grocery |
| C．encourage | D．ocea n |
curtain
| A．sailor | B．said |
| C．captain | D．certain |
average
| A．stadium | B．passage |
| C．advance | D．cigarette |
– Mary, would you rather stay in or go shopping tomorrow?
– I prefer doing shopping, but ______. I’d rather you had a rest at home.
| A．I don’t mind your going with me |
| B．there’s no need for you to come with me |
| C．I don’t like being bothered |
| D．I know you can’t go with me |
All possible means ______ to protect this kind of animals in danger up to now.
| A．have been tried | B．were tried |
| C．was tried | D．has been completed |