Mr Jackson hasn't decided this weekend．（ ）
| A． |
where he will have a picnic |
| B． |
where will he have a picnic |
| C． |
where he had a picnic |
| D． |
where did he have a picnic |
Mr Jackson hasn't decided this weekend．（ ）
| A． |
where he will have a picnic |
| B． |
where will he have a picnic |
| C． |
where he had a picnic |
| D． |
where did he have a picnic |
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