—Haven't seen you for ages! Where have you been?
—I went to Ningxia and there for one year, teaching as a volunteer.
A. stayed B. stay C. had stayed D. am staying
（题文）（2018·江苏）Hopefully in 2025 we will no longer be e-mailing each other, for we _______ more convenient electronic communication tools by then.
A. have developed B. had developed
C. will have developed D. developed
We were sleeping soundly when the alarm clock ________ and woke everyone.
A. went off B. went by
C. went over D. went up
Over the last three decades, the number of people participating in physical fitness programs ________ sharply.
A. was increasing B. has increased
C. had increased D. will be increasing
－ Henry isn't quite himself today. He seems to be so tired.
－ He said he had worked on his project ________ the whole night.
A. over B. with
C. through D. in
—Did you have difficulty finding Ann'house?
—Not really.She___us clear directions and we were able to find it.easily?
A. was to give B. had given
C. was giving D. would give
