Children under 12 years of age in that country ______ be under adult supervision when in a public library.
| A．must | B．may | C．can | D．need |
(2014届山东省济宁市曲阜师大附中高三上学期期中考试英语试卷）
Some modem paintings are _____ my understanding; I simply can't understand what the painters really want to tell us.
| A．within | B．behind | C．around | D．beyond |
David was always ______ his best in any danger, but at that moment he froze.
| A．at | B．in | C．for | D．on |
— Have our travel plans been decided?
— No, still ______.
| A．out of order | B．up in the air | C．in the case | D．in the way |
Math is ___________ me. I can never get high grades.
| A．over | B．beyond | C．below | D．behind |
You may know better about Jack London if you have read a book_______ the name of The Call of the Wild.
| A．in | B．by | C．under | D．to |