What class would you like to ___flight______,first ,business,or economy?(flight)
The lecturer from the university spoke so __clear____that i could hear every word.(clear)
The Red Cross provides medical _____served___to the victims.(serve)
What would Mike like to do after school Mike hasn't told us yet.(合并句子)
Mike hasn't told us _____what___ ______he___would like to do after school.
The runner failed to keep up with the others though he tried his best(保持句意不变)
The runner __couldn't___ _catch_______the others though he did what he could