A.has taught | B.had taught | C.taught | D.has been teaching |
A.held | B.made | C.agreed | D.shared |
A.inviting | B.invited | C.have been invited | D.invite |
A.ended up | B.brought up | C.came up | D.took up |
A.distinguish | B.separate | C.define | D.recognize |
A.achieve | B.awake | C.admit | D.Control |
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