We’re programmed to want more food, we won’t have a chance to eat tomorrow．

I have to buy _________of the two books because I don’t know which to choose.

.Some companies have introduced flexible working time with less emphasis on pressure ____.

Can you go to the mountains with me , Allan?——Sorry, I can’t . I _________ for the English test now.

If you still have any other questions, please ____your hand.