28．— Is Mike going there by bus?
— He ought to, but he ________ not. He likes riding his bike.
| A．must | B．may | C．need | D．Can |
.Oil prices have risen by32 percent since the start of the year, ______ a record US $57.65 a barrel on April 4.
| A．have reached | B．reaching | C．to reach | D．to be reaching |
It was a pity that the great writer died _________his works unfinished.
| A．for | B．with | C．from | D．of |
Playing tricks on others iswe should never do
A．anything |
B．something | C．everything | D．nothing |
He accidentallyhe had quarreled with his wife and that he hadn't been home for a couple of weeks.
| A．let out | B．took care | C．made sure | D．made out |
We have tothe wheat as soon as possible because a storm is on the way
| A．get away | B．get across | C．get through | D．get in |