I didn’t hear the phone. I ________ asleep.
| A．must be | B．must have been | C．should be | D．should have been |
Products made in this factory ____ well; they have sold ___all their products.
| A．sell; out | B．are sold; over | C．sell; off | D．are sold; away |
Farmers grow crops either to ____their family ___to sell.
| A．feed; and | B．feed; or | C．supply; or | D．supply; nor |
If you offer him some help this time, since he once helped you, that would be ____.
| A．equal | B．more equal | C．fairer | D．more fair |
If ________ guests we have, we would need ___ food.
| A．more; less | B．fewer; more | C．few; less | D．fewer; less |
The problem with people in Africa ____that the more is given and the more ______.
| A．is; is needed | B．are; is needed | C．is; they need it | D．are; they need it |