When do most doctors go for a home visit?

• A、Before 11 a.m.
  

• B、From 6:30 p.m to 8 a.m.

• C、From 8:30 a.m. to 6 p.m.

• D、Between 12 noon and 3 p.m.

P: I’m running a fever. I’ve caught a cold.
S: Oh, _____54_____?

The next morning people found the world outside their houses completely________ .

• A、change

• B、changing  
  

• C、changed
  

• D、to change