---Be careful. You might fall into the river.---Thank you. I ________ I ________ so close to it.
We all know that doing morning exercises ______.
John arrived _____ London _____ a cold morning.
Lily and Lucy are twins and Lucy is ________ of the two.
I don’t like this pair of glasses at all. Please show me _________.
Shanghai is bigger than _____ in Jiangsu and bigger than _______ in China.