The message is very important, so it is supposedas soon as possible.
John Logie Baird constructed the first color TV in 1928, but it was not until 1938 ______ the first color TV programme was broadcast.
Since his retirement from teaching music in 2001, Mr. Smith ______ a good deal of time painting as an artist.
Lawrence Craven, a doctor from the US, introduced the idea in 1953 _______ aspirin has the potential to reduce the risk of heart attacks.
Keeping on doing good deeds brings us peace of mind, ________ is important for our happiness.
_______ I have never thought of getting a job in such a big company, I’ll have a go at it.