根据题干要求填空
With a modal auxiliary:
The report was well written with sufficient details and statistics: the writer ______have spent a lot of time and energy writing it
must表肯定推测。
根据题干要求填空
With a modal auxiliary:
The report was well written with sufficient details and statistics: the writer ______have spent a lot of time and energy writing it
must表肯定推测。