The foreigner is learning ___ Chinese and he is sure that ___ Chinese language is very difficult.
I told him he would succeed ___ he tried hard.
I have read the material several times but it doesn’t make any ___ to me.
___ English, he has a good command of Russian and French.
A series of ads produced by the company has greatly ___ the success of the new product in the market.
Michael put up a picture of Yao Ming beside the bed to keep himself ___ of his own dreams.