—In the old days, most teenagers had to work for the landlord (地主) in the field to help _____ their families, because their families couldn’t _____ education for them.
—What a pity!
| A．support; supply | B．afford; support |
| C．support; afford | D．afford; give |
The man ______ be my father. My father is much taller.
| A．can | B．must | C．can't | D．mustn't |
There _____ a number of people at the square in the morning, the number _____ over 1,000.
| A．is, are | B．is, is | C．are, are | D．are, is |
I _____________ his letter for a week.
| A．heard from | B．have received | C．have had | D．have got |
We will go climbing _______ it ________ tomorrow.
| A．if, rains | B．if, will rain | C．unless, rains | D．unless, will rain |
My mother _______________ my aunt called her.
| A．was cooking while | B．cooked when | C．cooked while | D．was cooking when |