Question

—The old man is ill. He ________ to the hospital at once.
--Don’t worry. A doctor _________to come already.

A．must be sent , has asked

B．must send, have asked

C．must be sent, has been asked

D．must send, have been asked

Answer 1

C

試題分析：句意：---這個老人生病了他必須馬上被送到醫院，----不要擔心，醫生已經被叫來了。 Must be done 表示含情態動詞的被動語態，完成時的被動語態have been done 結構，根據題意可知選C