The word "it" in paragraph refers to ________.
Đáp án D
Từ “it” trong đoạn nói đến ______
A. cách thức B. môi trường C. lời nói D. hiệu lệnh
“The basic function of signal is to impinge upon the environment in such a way that it attracts attention”
(Chức năng cơ bản của hiệu lệnh là tác động tới môi trường bằng cách nó thu hút sự chú ý.)
Như vậy có thể thấy, nó ở đây là hiệu lệnh.
It can be inferred from the passage that a soil sample with little or no clay in it ________.
The author states that “There are no right or wrong answers” in paragraph 2 in order to ______ .
The garbage dumps in some areas have relatively little glass and plastic because_____.
The author mentions “several representative handfuls” in the passage in order to show ______.
The author mentions all of the following as concerns of telecommuters EXCEPT_____.
The word “laundry” in paragraph 2 is closest in meaning to ___________.
For several centuries after the disintegration of the Roman Empire, the main source of water supply was from ______.