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1. The negative form of the sentence " He worked on his idea a long time" is: *
a. He doesn't work on his idea a long time.
b. He don't work on his idea a long time.
c. He didn't work on his idea a long time.
d. He isn't work on his idea a long time 2. The interrogative form of the sentence "Tom was a curious boy " is: *
a. Did Tom was a curious boy?
b. Was Tom a curious boy?
c. Does Tom was a curious boy?
d. Do Tom was a curious boy?