Growing population resulted in growing rubbish–There is possibility that rubbish ________the major threat to human beings

I don’t want anyone ________ me, telling me what to do and what not to do

There’s ______wallet on the ground. I guess _______wallet is Li Ming’s.

There’s no bear left and the pubs are shutso you’ll have to _______.

are many cars coming up anddown If you insist on standing there, you will risk _________ down on theground