【30】A．onB．inC．offD．with

We should（)at a night market tonight.A hang outB hang inC hang offD hang over

What he said just now had little to do with the question ______ discussion.A．onB．inC．under

A．calling onB．calling forC．calling offD．calling in

She was______her wits end and could do nothing more.A．onB．inC．atD．with

Some important things have come______, I have to talk with the manager.A．onB．inC．upD．out

A ship with a heavy load is said to have sunk______ the coast of Southeast China.A．onB．inC