— Come and join us, Betty!
— I’m afraid I can’t. I’m too busy now. If I ______ time, I would certainly go.
| A．have | B．have had |
| C．will have | D．had |
— Come and join us, Betty!
— I’m afraid I can’t. I’m too busy now. If I ______ time, I would certainly go.
| A．have | B．have had |
| C．will have | D．had |
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