. Such animals like dinosaurs died out because they could not _________ to the change of the climate.
| A．suit | B．keep | C．adapt | D．switch |
. There was terrible noise ___________ the sudden burst of light.
| A．followed | B．following | C．to be followed | D．being followed |
. 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 |