The byfactories.

As a doctor，I that I will be kind to my patients，love them and do my best to save their lives. That is my promise.

sent, 1 in every 10 people isaged 60 years or older, ______ in 2050, 1 in every 5 people will be aged 60years or older.

There are _________200 animals in the zoo.

I have forgotten______ you put the dictionary.