In the past 70 years， China______historic changes and made great achievements．（ ）
A．experiencedB．has experienced
C．experiencesD．would experience
StorySign is____a useful app____it can make it easier for deaf children and their parents to read bedtime stories．（ ）
A．so…thatB．such…thatC．too…toD．as…as
____have you worked here？
For just one month．（ ）
A．How oftenB．How longC．How soonD．How much
April 15 was a sad day for France．A large fire____at the Cathedral of Notre﹣Dame．（ ）
A．broke outB．carried out
C．gave outD．ran out
____we didn′t win the basketball game，we were satisfied with our hard work．（ ）
A．IfB．ThoughC．SinceD．Because
It's reported the medals for the 2020 Olympic Games in Tokyo____from 100% recycled material．（ ）
A．are makingB．have made
C．is madeD．will be made