Li Qiang is_____ honest boy. He wants to be_____useful person when he grows up

Please don’t throw paper on the ground. —________，I won’t.

下列各句中，表达得体的一句是（ ）

There is no doubt ________ only by lifelong learning can we keep up with the advancing society.

With everything needed________, she went out of the shop, with her hands full of shopping bags[ ]