题目内容
---I haven’t seen my grandparents for long. I’m too busy ___ them these days.
---Why not call them instead?
A. visit B. to visit C. visiting D. visits
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题目内容
---I haven’t seen my grandparents for long. I’m too busy ___ them these days.
---Why not call them instead?
A. visit B. to visit C. visiting D. visits