— Are you satisfied with what he did?— No. It couldn’t have been _____.
The traffic problems we are looking forward to seeing _______ should have attracted the government's attention.
________, I have to put it away and focus my attention on study this week.
No student _________ go out of the school campus after ten o’clock at night without permission, according to the school regulations.
You should ________ your stupid ideas, otherwise you’ll regret in the future.
From mum's love, patience and understanding, I have learned what a huge responsibility _______ is to raise a child.