The drug came under strong attack from _______ professional observers, who had been backed up by many doctors.
| A．confused | B．confusing | C．concerning | D．concerned |
相关试题
I really can't understand ______ her like that.
| A．you treat | B．you to treat | C．why treat | D．you treating |
.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 |
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