Nothing can separate the two, because they have a           friendship foundation dating back to their childhood when they had to depend on each other to survive in the war. 

The patient is supposed to go to the hospital for ___________ checks.

The foreigners are ______ by the ________ progress that the Chinese have made. 

The school was moved out of downtown as the number of students had grown too________．

 If Jack doesn’t come home as usual, his parents will feel ________ about him