| A．were won | B．would be won | C．would win | D．had been won |
| A．will be become | B．will become |
| C．will have become | D．will have been become |
| A．worked | B．is working | C．work | D．has been working |
| A．had fallen | B．has fallen | C．fell | D．was falling |
| A．located | B．locating | C．to locate | D．is located |
| A．when Tom comes back | B．when Tom will come back |
| C．before Tom comes back | D．that Tom comes back |
| A．did go | B．didn’t go | C．had gone | D．went |
| A．am still to remember | B．have still been remembering |
| C．am being still remembered | D．still remember |
| A．Do you try | B．Have you tried | C．Are you trying | D．Have you been trying |
| A．give | B．have been giving | C．are giving | D．have given |
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