Xiao Hong worked harder last year. _______, she still didn’t get high grades.

_________ we admit that there are still some problems about NMET, we don’t mean that it is of no use

_______sending emails, I’ve kept in touch with my American friend for many years.[ ]

___ finding solutions, it isunthinkable to solve all the problems the same way throughout the country

Inour school library there anumber of books on science and the number of them growinglarger and larger.