So difficult ______ it to live in an English-speaking country that I determined to learn English well.
A. I have felt B. Have I felt C. I did feel D. did I feel
（题文）“Never for a second,” the boy says, “ D__ that my father would come to my rescue.”
A. I doubted B. do I doubt
C. I have doubted D. did I doubt
There ________ priceless jewellery on display at the exhibition hall.
A. are B. have
C. is D. has
The old __B__well looked after by the government in China.
A. is B. are
C. has been D. was
I found the lecture hard to follow because it __D__ when I arrived.
A. started B. was starting
C. would start D. had started
No decision __A_ about any future appointment until all the candidates have been interviewed.
A. will be made B. is made
C. is being made D. has been made
