39 In the United States, air pollution _____ at its worst in the 1960s.(A) being (B) was (C) to be (
44 English is important in Taiwan, _____ for business people.(A) especially (B) hardly (C) nearly (D
45 Professor Lin does not_____ late assignments. Students have to hand them in on time.(A) bring (B)
46 George suffered very serious brain _____ in a car accident.(A) damage (B) harm (C) ruin (D) wound
47 My uncle had a 15-year-long_____ in business before he became a teacher.(A) case (B) incident (C)
49 Peter always complains about the hot and _____ weather in Taiwan. He misses the dry and cool seas
50 What is an instrument which is used to see things far away?(A) Telescope. (B) Television. (C) Tel
42 In public places like restaurants and libraries, we should respect others and_______ .(A)are talk
43 Father: How was school today?Son:_______ We made kites and paper dogs.Father: Can I have a look?(
44 I have only two dollars. The toy is too_______for me to buy.(A)dangerous (B)easy (C)expensive (D)
45 E-mail is one of the most_______ ways to communicate with other people.(A)efficient (B)sufficient