| Idx | 0672 |
|---|---|
| Keyword | concentrate |
| Sub Entry Number | 2 |
| Type of Sentence | ✗ |
| Error Sentence | The teaching tends to concentrate in grammar. |
| Correct Sentence | The teaching tends to concentrate on grammar. |
| Cloze Error Sentence | The teaching tends to concentrate [[in]] grammar. |
| Cloze Sentence | The teaching tends to concentrate [[on]] grammar. |
| Cloze Answer | on |
| Choices | in | on |
| Explanation | concentrate on sth (NOT in ): 'She gave up teaching so that she could concentrate on research.' |
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