.-How does Jack usually go to school-He__________ride a bike,but now he________there to lose weight.

Can I pay the bill by check?—Sorry,sir.But it is the management rules of our hotel that payment ____ be made in cash.

At minus 130℃, a living cell can be _________ for a thousand years.

The man knocked her _____ her bike and _____ her lying on the ground

下列各句中，没有错别字的一项是（ ）