The reason why Malaysia Airline Flight370 disappeared remained_____.
| A．look into | B．to be looked into | C．looking into | D．to look into |
24. Everything a family needs to plan a party, except the cake and ice cream, ______ to the home in a large basket.
| A．delivers | B．deliver | C．is delivered | D．are delivered |
23. Nowadays, children always complain that their parents are out of date, ______ parents can’t approve of what their children say and do.
| A．while | B．thus | C．therefore | D．Otherwise |
22. We know a good deal about the people who lived in China 4, 000 years ago, because they ______write and leave written records for those who lived after them.
| A．could | B．should | C．must | D．Shall |
PART TWO: LANGUAGE KNOWLEDGE
Section A
Directions: Beneath each of the following sentences there are 4 choices marked A, B, C and D. Choose one answer that best completes the sentence.
21. Trees are useful to man mainly in three ways, the most important of which is that they can protect ______ from droughts (干旱) and floods.
A. it B. itself C. himself D. Him
35. –He eventually realized his own fault and wanted to reform. --_______.
| A．It’s no use pumping a dry well | B．It never rains but it pours |
| C．Better safe than sorry | D．Never too late to mend |