It was on November 15, 2010 ______ a big fire happened in Shanghai, ______ was a great shock to lots of people.
I'm examining the composition he has just finished ____ the possible mistakes in it.
The prize of the game show is $30,000 and an all expenses __________ vacation to China.
She's too thin. She ____ gain some weight but she _____ too little.
--- Mum, why do you always make me eat an egg every day ? --- ____ enough protein and nutrition as you are growing up.
He transplanted the little tree to the garden _____ it was the best time for it.