The performance of the host, _________ to please the audience and draw their attention, was greeted with a cold silence, however.

can chatwith your friends, makes communication easy.

Wehaveto________thewheatassoonaspossiblebecauseastormisontheway

To their disappointment，Dr Wang gave a speech about the economy without even a passing________to the problem of unemployment.

Many animals sleep a lot when young, but sleep much less when they get older, just________is the case with human being