Complete the sentences, using the given words in the brackets

I. Complete the sentences, using the given words in the brackets.
1. Mr. Brown wants to use solar energy. Mr. Brown does not have enough money to buy necessary equipment. (but)
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2. Shakespeare died in 1616. He had written more than 37 plays before then. (by the time)
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3. Douglas fell off his bicycle last week. He has had to use crutches to walk. (since)
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4. I turned off the lights. After that, I left the room. (before)
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5. The frying pan caught on fire. I was making dinner at that time. (while)
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6. I won’t return my book to the library. I’ll finish my research project first. (until)
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