1—I’m going to take partin the piano competition next week.— _____

(2017· 新课标全国卷II完形改编) Just last year, I was conducting a workshop when someone knocked at the classroom door. A woman the interruption and handed me an envelope.

esult of __ is now known in physics andchemistry, scientists have been able to make important discoveries in biologyand medicine.

rl used to be shy, but is ____ getting active in group work and is more willing to express herself.

How many ____ are there in the picture