Is the computer ? We don’t have to buy it .
.They were all so tired that they could ______.
___students will take part in the sports meeting and _____them is over three hundred.
I ______ some coffee _____ any sugar.
---What do you think of your brother . ----He is ___honest and _ useful man.
No one knows ______ in the future, so take care of what we have now.