28. Zhang Mingsheng, a farmer doctor of Nanping City, Fujian Province, _______murdered eight primary school students, was sentenced to death.
.An exhibition of paintings ____ at the museum next week.
Every possible means ____, but none ____ successful.
.The question he asked is hard ____ .
.By the end of last year, another new gymnasium ____ in Beijing.
.More than a dozen students in that school ___ abroad to study medicine last year.