PART TWO  LANGUAGE KNOWLEDGE
SECTION A
Directions: Beneath each of the following sentences there are four choices marked A, B, C, and D. Choose the one answer that best completes the sentence.
21. ________caused the accident is still a mystery.
A. How       B. What          C. That         D. Where

PART TWO LANGUAGE KNOWLEDGE
SECTION A
Directions: Beneath each of the following sentences there are four choices marked A, B, C, and D. Choose the one answer that best completes the sentence.
21．It was not ______ he took off his dark glasses ______ I realized he was Liu Xiang.
A．when; that          B．until; when    C．when; then    D．until; that

PART TWO LANGUAGE KNOWLEDGE

SECTION A

  Directions: Beneath each of the following sentences there are four choices marked A, B, C, and D. Choose the one answer that best completes the sentence.

21．It was not ______ he took off his dark glasses ______ I realized he was Liu Xiang.

A．when; that           B．until; when     C．when; then    D．until; that

PART TWO  LANGUAGE KNOWLEDGE

SECTION A

Directions: Beneath each of the following sentences there are four choices marked A, B, C, and D. Choose the one answer that best completes the sentence.

21. ________caused the accident is still a mystery.

A. How       B. What           C. That          D. Where

I. Multiple choice 10%

Directions: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence.

1. The most important thing about cotton in history is ____ part that it played in ____ Industrial Revolution.

A. / ; /         B. the ; /      C. the ; the      D. a ; the