Luckily, the man escape death when a fire broke out in his home on Sunday morning

What made Professor Liu thunder in the classroom yesterday? — A student’s interrupting his speech _____ the burst of his anger.

The train ＿＿＿＿＿ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight

The scientists are beating their brains trying to _______ a solution to the problem.

It is a good habit for us that we should never today’s work till tomorrow.