They took ______ measures to prevent poisonous gases from escaping in the chemical plant.
A. influential
B.beneficial
C.fruitful
D.effective
Questions 11 to 18 are based on the conversation you have just heard.
A. Write a report.
B. Join his friends.
C. Go to the laboratory.
D. Go to the party.
Questions 11 to 18 are based on the conversation you have just heard.
A. To feed the baby.
B. To bathe the baby.
C. To wake the baby up.
D. To take care of the baby.
Questions 11 to 18 are based on the conversation you have just heard.
A. Because it comes by mail.
Because it arrives a few days earlier.
C. Because it is much cheaper.
D. Because it is inconvenient to buy one from the bookstore.