Neither my wife nor I myself ___able to teach my daughter to sing English songs.

The opening of this section of the road is________until September.[ ]

xamwas too difficult, wasn’t it —Yes, I don’t think ______ could pass it

The spokesman did not give out the details of the message, saying, “it should not be made public as it is a ______ issue”．

can’t live in harmony nature, the balance will be destroyed.