Most of the world’s (1)________surface___________ is water. We may know very well about the land, but we know very little (2)_____About_________ the ocean. Until (3)______recently_______, man could not stay underwater for long. But now, with special (4)_____breathing_________ equipment, a diver can stay longer. After the (5)______invention_______ of this equipment,man could swim (6)_____freely_________ underwater and scuba- diving (7)__________became__________ a popular sport. We can learn more about the undersea world (8)____thanks______ to
this invention.
G,
Nam :Hi, Why (1) _______did__________you absent yesterday, Minh?
Minh : I had a (2) ______badly_______ toothache.
Nam : Oh, did (3)____you_________go to the dentist?
Minh : Yes ,I did .I went to the dentist(4) ______yesterday_________
Nam : (5)_______what__________was the problem?
Minh : Well. I had one small cavity, but it wasn’t serious.
Minh : The dentist filled the cavity in my tooth.
Nam : How do you feel now?
Minh : I feel a lot better after she(6) _________filled__________my tooth.
H,
Most teenagers (20)____around ______.the world (21) _____watch________TV. Many (22) _______listen ________to the radio. In a lot of countries, the most popular shows on TV are (23) _______series___________ They (24) ________show__________ordinary characters and how to they (25)______live__________.