David worked hard and a success at last.

1. David worked hard and a success at last.

【考点】

过去式和过去分词;

【答案】

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单词拼写（单句）普通

1. Bad luck! A thief (偷走) my wallet on my way to school this morning.

单词拼写（单句）容易

2. I rnot studying harder for the test. But I have learned from my mistakes and I will do better next time.

单词拼写（单句）容易

3. I suddenly (发现，发觉) that I left my wallet in the taxi.

单词拼写（单句）容易