Wefor an hour when the bus finally came.
A. waited
B. have waited
C. have been waiting
D. had been waiting
查看答案
After the project, the engineers immediately started a new one
A. completed
B. has completed
C. had been completed
D. has been completed
He had been a doctor for five years by the time hefrom the medical school.
A. will graduate
B. will have graduated
C. graduates
D. graduated
-What were you up to when they came in the office?-I for a while and some typing.
A. was playing; was going to do
B. played; did
C. had played; was going to do
D. had played; did
-Excuse me, sir. Would you do me a favor?-Of course. What is it?-I if you could tell me how to fill out this registration form
A. had wondered
B. was wondering
C. would wonder
D. did wonder