I think my Maths teacher is working hard. He teaches us very .—Yes, but he can’t come today. He doesn’t feel .

下列各句中没有语病的一句是

Was it at 11 o’clock ________ your father came back last night–Yes, he is always coming back so late.

nowadays spendtheyused to buy less food, especially meat.

What do you think of John?—He’s a good boy, but he ______ be really stubborn at times.