A.invited; is allowed | B.are invited; are allowed |
C.being invited; allowed | D.invited; are allowed |
A.to buy | B.bought | C.buying | D.buy |
A.has studied | B.studied | C.had studied | D.Studies |
A.Devoting | B.Being devoted | C.Having devoted | D.Devoted |
A.preserved | B.reserved | C.applied | D.Subscribed |
A.to collect | B.collected | C.being collected | D.Collecting |
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