Chọn D
Dolphins, (mammal) species, sometimes jump above the surface of the water.
Her mother (29. go) abroad last month, so it (30. not be) her you see at the theater last Sunday.
The situation is so (chaos) in some countries now that it is difficult to see any solution
Due to (electric) the difference between urban life and rural life is more and more reduced.
Finish each of the following sentences in such a way that it is as similar its possible in meaning to the original sentence. Use the word given and other words as necessary. Do not change the form of the given word
A doctor may prescribe (biotic) if the patient has an infection.