4. -You've got a good result in your research, haven't you?

-Yes , but much ________ .

A. remains to do B. is remains to do C. remains to be done D. has remained to do it

相關(guān)內(nèi)容：

2012年2月公共英語(yǔ)考試每日一練匯總

（責(zé)任編輯：中大編輯）

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