1．The hospital has recently obtained new medical equipment, ________(allow) more patients to be treated.
答案：allowing
2．People probably cooked their food in large pots, ________ (use) twigs (树枝) to remove it.
答案：using
3．The cooling wind swept through our bedroom windows, ________ (make) air conditioning unnecessary.
答案：making
4．__________ (work) for two days, Steve managed to finish his report on schedule.
答案：Having worked
5．He kept looking at her, ________ (wonder) whether he had seen her somewhere.
答案：wondering
6．Like ancient sailors, birds can find their way ________ (use) the sun and the stars.
答案：using
