It was _____ computer games that cost the boy a lot of time that he ought to have spent on his lessons.

____ he’s only been learning English for a year, he speaks it very well.

--- I hear Warren _____ in a middle school.
　--- What? I can’t imagine him _____ as a teacher.

The 18-storeyed building, when _____, will shut out the sun _____ up the rooms in my house.

_____ 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.

--- Would you be _____ lend me your bicycle?
　--- Sure.