下句一共有几个介词词组，其中under his arm作什么词法功能？The Fish-Footman began by producing from under his arm a great letter.
举一反三
- He began to sob and then ______ under the weight of his grief.
- The policeman caught the thief ______ and took him away. A: in his arm B: by his arm C: in the arm D: by the arm
- 3-6、The thief was about to leave the store when he was stopped and asked if the articles under his arm _________ for. A: had been paid B: had paid
- His business went under because of ______ from the large corporations.
- The policeman caught the thief ______. A: by his arm B: by the arm C: at the arm D: in arms