the matter with you—Afterthe long walk, my legs ______ and I couldn’tgo any further

The audience were ________ by his ________ performance on the stage.

填入横线上的句子，与上文衔接最恰当的一句是（ ）随着市场经济体制的日臻完善，利用先进技术提高产品的科技含量以增强市场竞争力，已成为各企业集团的共识。_________________________________________ 。

Mum, ______ my English teacher, Ms Yang.

Four o’clock in the morning?-What? Oh, no, don’t ring me up that early. I ________.[ ]