题文
---I _________ Ann with her Chinese over the years, but she can’t speak it at all.
--- Never mind, she is too young.
| A．have helped | B．help |
| C．helping | D．helped |
---I _________ Ann with her Chinese over the years, but she can’t speak it at all.
--- Never mind, she is too young.
| A．have helped | B．help |
| C．helping | D．helped |
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