Why don’t you _____ your teacher for help when you can’t finish _____ it by yourself ?
| A．ask; write | B．to ask; writing | C．ask; writing | D．asking; write |
Why don’t you _____ your teacher for help when you can’t finish _____ it by yourself ?
| A．ask; write | B．to ask; writing | C．ask; writing | D．asking; write |
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