We are planning a Yangtze River Protection Day this weekend． Do you have any advice？
You'd better ____signs around the school to tell all the students about that．（ ）
A．make upB．put upC．set upD．show up
Jenny just wondered Angela already knew about the event．（ ）
A．how soonB．how manyC．how oftenD．how much
Sorry， you can't take the dictionary away，Vicky．I it．（ ）
A．usedB．am usingC．have usedD．was using
China's efforts to stop the spread of COVID﹣19 will the world's ability to limit the harm in the near future．（ ）
A．imagineB．inventC．insistD．improve
We still know little about the Moon_________men have landed on it．（ ）
A．ifB．sinceC．althoughD．because
What a sunny day! Why not go cycling？
_________．（ ）
A．No， I don't mindB．You'd better not
C．That sounds greatD．It's my pleasure