He started to learn English in 1990 and in the years ________ he kept on using it in his work.
After the new type of rice was introduced, the farmers produced _______ rice this year as last year.
________ is of no concern to us.
John hit_________.
The speaker _______ at the audience and then began to make his speech.
I’m sure David will find the library—he has a pretty good ______ of direction.