He hasn’t recovered from his injury, but _______ hisperformance in the sports meet, he is a success.

下列各句中与其他三项句式不相同的一句是（ ）

Would you like some more beef?—No, thanksI’m ______ a diet

The film started to get boring, at _____ point I leftthe cinema accompanied by my twin sister.

Excuse me. Is this the right way to the Summer Palace? —Sorry, I am not sure, but it ____ be.