giup mk vs chieu ny 3h 30 nop rui Cho $\frac{a}{b}$ =$\frac{b}{c}$= $\frac{c}{d}$ (a,b,c,d $\neq$ 0) C/M: a=b=c

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Choose the best answer Lake Malawi When David Livingstone arrived in this part of Africa in the 1850s he asked the name of the great stretch of (inland / inner / interior / internal)1___ water. He was told it was called “nyasa”, whic means “lake”. So the lake became (called / considered / known / named)2___ as Lake Nyasa (Lake Lake) and the country as Nyasaland. When the country became independent in 1964 the new Republic chose the name of Malawi. Lake Malawi (contains / covers / crosses / includes)3___ nearly 24,000 square kilometres , about one-fifth of the total (district / region / territory / state)4___ of the Republic of Malawi. The lake (exists / lays / lies / rests)5___ 473 metres above sea (height / level / position / surface)6___ in the deep valley which stretches the length of the country. Wide grassy plains (overcome / overflow / overlook / overtake)7___ the valley on both sides and the (environment / scenery / sight / vision)8___ round the lake is spectacular. The water is fresh and there are no tides or currents. The lake contains over 220 varieties of fish, the (chief / majority / rest / whole)___ of which are not found anywhere else in the world. There are also crocodiles, but these generally keep away from (inhabited / lived / lodged / occupied)10___ areas. BT – Updatepower – Week4 (Grade 9) – July2021 Lake Malawi has a constantly changing character (based / counting / depending / determined)11___ on the time of the day, the weather and the (occasion / period / season / term)12___ . One moment the water may be as (even /flat / smooth / steady)13___ as silk and then suddenly waves seven metres high can beat against the (banks / borders / coasts / shores)14___ . It is generally calmest from March to May, and the temperature never (decreases / depresses / drops / lowers)___ below 21°C. The area has a particularly low annual rainfall.