On account of fuel supplies being finite and many people being wasteful, we will have to install ________ solar heating device in our home.
| A．some type of a | B．some types of a | C．some type of | D．some types of |
25. The farmers once used wood to build a house ______ to store grains all the year round.
| A．how | B．what | C．in which | D．in where |
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 |