He has been talented at designing and creating things ________ he was young

it rain tomorrow, we would have to put off the sports meeting.

ental _______ computers are to ______ more industrial structure, heavy reliance on them may separate people in daily life and affect their interpersonal relationships.

The little boy hiding in the forest by the police yesterday.

Tourists are now coming to Ping’an village in largenumbers, ___________ they would never have stopped, had it not been Mo Yan’shometown.