1 . Da Mao and Er Shun are two pandas that have lived in Canada since 2014. They were going to stay there until 2023. However, they will be taken to China     1     （early） than planned.

They are now living in the Calgary Zoo in Canada.     2     May 12, the zoo said that it was going to send the two pandas back to China. This is because the zoo can't get enough bamboo for     3    （they）, Global News reported.

Because of COVID﹣19 travel restrictions （限制）, it has become more challenging for the zoo to get bamboo. According to the zoo,     4       adult panda eats around 40kg of bamboo a day.