Don’t use water to put out the fire if oil catches fire. As is known, oil ____ float on water.
| A．shall | B．must | C．may | D．will |
24. However busy you are, try to _______ at least half an hour each day to practice listening and reading.
| A．put away | B．put up | C．put off | D．put aside |
23. Jenny is always _______, never complaining about her poor health and other troubles.
| A．careless | B．grateful | C．cheerful | D．comfortable |
22. The two men were _______ of receiving stolen property, which made their parents worried.
| A．doubted | B．charged | C．suspected | D．blamed |
II. Grammar and Vocabulary (15 points)
21. In face of _______ failure, it’s important for us to keep ________ good state of mind.
| A．/；the | B．the；a | C．/；a | D．a；the |
______ man may usually be known by the books he reads as well as by ______ company he keeps.
| A．The; a | B．A; a | C．The; the | D．A; the |