You will surely realize your dream of being a scientist ______ you give it up halfway.

The news________ Ning Zetao won the gold medal in the swimming competition excited Chinese People.

It was ______ of Jack to turn off the radio when I was sleeping in the bedroom. — So he was. [ ]

rst time I ____ Todd, he ____ to some students at the English corner.

What a clean and bright classroom, isn’t it—Yes, it’s always clean and bright because it everyday.