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"My friend told me there was something in the box, but I didn't know what it was yet. "

"My grandmother taught me how to bake cookies when I was a child. "

"Her grandmother had passed away after a long illness."

"My grandmother's recent ailment required a visit to the doctor. "

""In the sentence 'Someone left a note,' the word 'someone' is an indefinite, because we don't know who left the note." "

"The strong winds troubled the still water in the lake, creating ripples. "

"The computer has been very troublesome for me. It never works when I need to use it."

"Check the oil in your car once a month."

"The interrogative "who" is often used in classroom discussions to encourage student participation. "

"Construction is underway on the new bridge."

"He was in trouble when the rain started."

"The complicated instructions on the new software difficult me from completing the project on time. "