I have been told to donate blood by the health expert __________ I need some in the medical treatment one day.
| A．even though | B．as if |
| C．in case | D．now that |
. The secretary worked late into the night, ___________ a long speech for the president.
| A．to prepare | B．preparing | C．prepared | D．was preparing |
. “Can't you read?” Mary said ___________ to the notice.
| A．angrily pointing | B．and point angrily | C．angrily pointed | D．and angrily pointing |
. How about two of us ___________ a walk down the garden?
| A．to take | B．take | C．taking | D．to be taking |
. ---I must apologize for ___________ ahead of time. ---That’s all right.
| A．letting you not know | B．not letting you know |
| C．letting you know not | D．letting not you know |
. ---You were brave enough to raise objections at the meeting. ---Well, now I regret ___________ that.
| A．to do | B．to be doing | C．to have done | D．having done |