She________have been to your house. She doesn't know your address.
Only when he is seriously ill ______ in hospital.
I would advise you there by bus, because it’s too crowded.
The reason I’m writing to you is to tell you about a party on Saturday.
-Will you stay for lunch? - Sorry, I _____. My mother is coming to see me.
I shall never forget those years I lived in the countryside, has a great effect on my life.