He started to learn English in 1990 and in the years ________ he kept on using it in his work.
_____ and out of breath, we reached the top of the mountain and stopped _____ the beautiful scenery.
The performance of the host, _____ to please the audience and draw their attention, was greeted with a cold silence, however.
Some of the schools in Shanghai have moved one step closer to _____ with the global education community.
The teacher asked more _____ to prevent the students’ eyes from being injured.
The beach is so beautiful that it is worthwhile, I think, _____ for a short holiday.