____she is tired, _______ Han Mei doesn’t stop working.

Why didn’t Tom give you one ofhis paintings— I didn’t want one, but he would havegiven me one if I______.

下列各句的句式特点，与其他各项不同的一项是（　　）

_______ can I keep the books—Two weeks.

We often go to school _______ 8:20________ the morning.