A.build | B.have built | C.are built | D.are being built |
A.having flown | B.to have flown | C.to be flying | D.flying |
A.attracting | B.attracted | C.attract | D.to attract |
A.wonder | B.wondered |
C.wondering | D.having wondered |
A.Taking | B.Taken | C.To take | D.Having taken |
A.went | B.had gone | C.have gone | D.have go |
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