单项选择题
She was（）down with two heavy pieces of luggagc and was trying to look after three children.
A.pressuredB.loadedC.putD.bent
单项选择题 We have to（）the job applications into groups based on their qualifications.
单项选择题 She went to the post office to mail a（）.
单项选择题 It is（）making an effort。
