It took what seemed to be years _______ the football star appeared, which made the fans disappointed and angry.
A. when B. since C. before D. until
— I have to go now because I must be ______ for class.
— What a pity! See you!
A. modest B. punctual C. desperate D. adequate
I hope Jack’s health ______ greatly by the time we go back to school this September.
A. improves B. improved C. will be improving D. will have improved
— When will the bike-sharing schemes be introduced to the public?
— Not until _______ a better understanding of them.
A. we have had B. will we have had
C. have we had D. we will have had
On the way to the White Temple, our guide ______ its history and some legends to us.
A. resembled B. renewed C. related D. relayed
— What should we avoid when we work out in summer?
— ______ when the temperature is over 32℃.
A. To run B. Running C. Having run D. To have run
