It is widely accepted that animals learn to do things because their certain acts lead to _______.
| A．rewards | B．prize | C．awards | D．results |
相关试题
（安徽卷24）.---Do you know if Linda is willing to take charge of the program?
--- , does it?
| A．It makes no time | B．It counts for nothing |
| C．It doesn’t hurt to ask | D．It doesn’t make sense |
．（全国II 18）. –Can I help you? Are you looking for anything in particular today？
----_____，we’re just looking.
A．Yes,  please |
B．No, thank you | C．Yes，you can | D．No, you needn’t |
（全国II 6）.—Is it all right if I keep this photo？
---_______.
| A．No，you don’t | B．No, it shouldn’t | C．I’m afraid not | D．Don’t keep it |
. (全国I 35).—Was he sorry for what he’d done？
—_________.
| A．No wonder | B．Well done | C．Not really | D．Go ahead |
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