It is difficult for a teacher to give attention to children in a large class．We should reform the situation in order to meet each child’s needs．

The housing problems we are looking forward to seeing _______ have attracted the government’s attention.

____ is the cap—Twenty Yuan.

Many developingcountries are unwilling to pursue their economic development ______ destroyingthe environment despite there being several financial crises.

I’ve spare ___ juice for you, and your half ____ in the refrigerator.