----_______is your sister?     ---She is thirteen years old. 

---Good to see you again. It’s almost three years _______ we met last time.---Yes, how time flies.

---When did you return to China?---_________________.

--- Would you like to go hiking with us for summer vacation?--- Yes, I’d love to. _____ my parents have decided to take me to visit my grandmother.

He wants to be an actor________it’s an exciting job.