My father likes smoking. He often says that giving up smoking is the easiest thing in the word. I know because I________ it thousands of times.
A.have done | B.am doing |
C.will do | D.do |
My father likes smoking. He often says that giving up smoking is the easiest thing in the word. I know because I________ it thousands of times.
A.have done | B.am doing |
C.will do | D.do |
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