Land animals are believed ______ from sea animals.
| A．to develop | B．developing |
| C．developed | D．to have developed |
Coal is hard, like a rock and yet it burns, while no rocks ______.
| A．do | B．does | C．are | D．is |
--- John, where are the cookies? Don’t tell me you ate them all!
--- ______ I couldn’t help it. They were so good.
| A．Yes, I did. | B．No, I didn’t. |
| C．Yes, I have. | D．Why? Sounds strange! |
--- How will I ______ you at the station?
--- Well, I’m wearing a hat and I’ve got a big black umbrella with me.
| A．recognize | B．notice | C．see | D．realize |
______ there are only five minutes to go, I’ll talk about the project short.
| A．As if | B．Even if | C．Because of | D．Now that |
When caught ______, he begged for my pardon and tried ______ punishment.
| A．stealing; escaping |
| B．stealing; to escape |
| C．to be cheating; escaping |
| D．to be cheating; to escape |