Only when I left my parents for Italy _____ how much I loved them.     

We have been told that under no circumstances ______ the telephone in the office for personal affairs.

---He suggests the number of cars should be limited to stop air pollution.
--- __________, the idea is not very practical.

While building a tunnel through the mountain, ________ .

We laugh at jokes, but seldom __________ about how they work.

Hardly _____ closed my eyes ___ I began to make this fantastic dream .

– What’s Joan dong?     -- ______ newspapers in the room.

– Will you waste your time and money on that?   -- Certainly _______.

_____twice, the postman refused to deliver our letters unless we chained our dog.

____ to hospital in time, the wounded soldiers were saved at last.