Skill 2: 句子不缺成分（动词后不缺宾语），名词前、不及物动词后，考虑填 _________。 卷3） I was searching ______ these 3 gorillas. 17）______ a method 作为一种方法; travelled to and ______ work. get a degree ______ engineering工程学. 16）goes back ______； focused______； eat ______ their hands. 15）fly to Guilin, ... only an hour away ______ car. ______ the same time， 14）next ______ the window.

介 词 (不单独作句子成分，常用于名或动词搭配,表词与词、与句之间关系的一种虚词 )

from

by

with

as