问题
选择题
The doctor is now very busy, many patients are waiting _______outside his office.[ ]
A. to examine
B. to be examining
C. to be examined
D. examination
答案
答案:C
The doctor is now very busy, many patients are waiting _______outside his office.[ ]
A. to examine
B. to be examining
C. to be examined
D. examination
答案:C