I would have written before, but I______ill.A．have beenB．would beenC．had beenD．were

I have an appointment with Mr. Xie at about 10 o’clock tomorrow morning, but would you

I would have told him the answer had it been possible, but I have been so busy then.（

I would have told him the answer had it been possible, but I ______ so busy then.A．amB．wer

But for your help, I ______ .A．must failB．might failC．would have failedD．will fail

—Have you returned from Japan yet？ —Yes, but I ______ at home for only four days before my

I would have invited her to the party but I ___ her well.A、don’t knowB、didn’t knowC、doe