____ several times, the young scientist still kept on doing his experiments.
Across North China in the world, namely the Great Wall.
—Pity you missed the lecture on nuclear pollution. —I _______ it ,but I was busy preparing for a job interview.
The principal walked onto the platform and seated himself in a chair, _______ for answering questions.
That truck nearly hit me; I _______.
Before the war broke out, many peoplein safe places possessions they could not take with them.