It seems to some experts that there are only three commonly-used video websites in this area: 56.com, Youku.com, Tudou.com and they_______ 90% of the market.
________ her work has been good, but this essay is dreadful
They made no effort to hide their amusement ________ I produced a packet of sweets from my pocket.
________ you stepped into the lab with your shoes on? You’re supposed to take them off before you enter it. I told you so!
The number of the people present at the concert ________ much smaller than expected. There ________ many tickets left.
It was not until I got home ________ I found my wallet missing.