That is the day ______I’ll never forget.

How is Grace–She is__________ .

How was ________ dinner atMike’shouse —It was great. Mike’s mum is _________ wonderful cook.

She tried _______, but failed; now she could do nothing but wait till her husband came.

(2013·江苏，28)In the global economy，a new drug for cancer，________it is discovered，will create many economic possibilities around the world.