Nothing is so easy as ________ parents to raise their expectations of their children too high.
| A．of | B．to | C．by | D．for |
As we drew closer, I could see a whale by a pack of about six other killers.
| A．attacked | B．to be attacked | C．having been attacked | D．being attacked |
I am very outgoing and have learned to my disability.
| A．adapt to | B．adapt from | C．adapt for | D．adapt with |
Claire thought it was ridiculous sympathy by a robot.
| A．to offer | B．to be offered | C．to be offering | D．to have offered |
There is no doubt the earth is becoming warmer.
| A．whether | B．that | C．if | D．why |
Using a telescope we could see that something .
| A．is happening | B．happened | C．would happen | D．was happening |