Theplacethebridgeissupposedtob-优题课

The place _____ the bridge is supposed to be built should be _______ the cross-river traffic is the heaviest.

A．to which; where	B．at which; where
C．by which; in which	D．for which; which

科目英语题型单选题难度中等

On Sundays there were a lot of children playing in the park, _______ parents were sitting together joking.

On Sundays there were a lot of children playing in the park, _______ parents sat together joking.

On Sundays there were a lot of children playing in the park, _______ parents sitting together joking.

On Sundays there were a lot of children playing in the park, and _______ parents were seated together joking.

On Sundays there were a lot of children playing in the park, _______ parents were seated together joking.