1．Only after talking to two students did I discover that having strong motivation is one of the biggest factors in reaching goals.
2．Tom seldom, if ever, paid for the software on his computer. That is, he used lots of pirated software.
3．It is human errors, rather than the natural disaster, that are to blame for the death of so many innocent people in the landslide at an industrial park in Shenzhen.
4．Into the dark apartment walked(walk) David，who was quite surprised when everyone shouted “Happy birthday！”
5．It was not until we had stayed together for a couple of weeks that I found we had a lot in common.
6．—You didn't wait for Mr Smith last night, did you?
—No, but we didn't need to. He didn't return home at all.
7．Much as/though few readers succeed, it is exciting for readers to take the challenge to guess the result when a story comes to the end.
8．—I don't think that they will reach an agreement in such a short time.
—Neither/Nor do I. It will take time to find a winwin solution.
9．When watching(watch) the film in the theatre, the audience burst out laughing.
10．“An awful accident did, however, occur the other day，” the old man repeated, trembling all over.
