We should not only be confident ____ ourselves, but alsothink things ____ before making decisions.

et such a silly mistake in theEnglish exam— youkeep on trying, I don’t really mind whether you can come out top in your class

All her time ____________ her students, so she has no time for housework.

She is ____ not only in English and French, but also able to speak a little Spanish. [ ]

Yu Min _____ in the physics field for many years. He is called the Father of Hydrogen Bomb (氢弹之父). He in the winner of the award for Supreme Science and Technology of China,