The adoption of orphans and physically challengedchildren has been a subject of public debate _____ a fire in an unregisteredorphanage last month.

meat, vegetables and other foods can easily be poisoned by microorganisms such as ______.

Who’s ______boy under the tree-Bill. He’s ______ active boy.

I am______ with the boy for being so stupid.

He’s already back to Australia,________ — _______ .He’s on a visit to Shanghai .