131 . Lan and Hoa ( read ) ……are reading……… in the library at the moment .
132 . We ( not come ) …………won't come……………..here tomorrow morning .
133 . Listen ! The girl ( play ) …………is playing……….the piano .
134 . Nam ( go ) ……goes……………..to the English club every Saturday .
134 . What ………are……….you ( do ) ……doing……….now .
I ( grow ) ………am growing…………some flowers .
135 . My father ( travel ) …………will travel……..to Nha Trang next week .
136 . Students often ( go ) …………go………to the school cafeteria at lunch time .
137 . You can ( find ) ……find……..math books on the racks in the middle .
138 . Look ! The teacher ( come ) …………is coming………….here .
139 . She ( study ) ………studies…………..maps in Geography .
140 . Ba can ( fix ) ………fixing……..the lights .
141 . They ( do ) …………are doing………….some experiments at the moment .
142 . You ( be ) ……will be……….a famous author one day .
143 . He enjoys ( draw ) …………drawing……….pictures .
144 . Mai ( learn ) ………learns…………..to play the piano in her free time .
145 . I ( try ) ……………am trying………...to repair the radio now .
146 . The students ( write ) …………write………an essay in Literature next Monday .
147 . Let us ( go ) ………go…………to the English club .
148 . I ( do ) ………am doing……….my math homework at the moment .
149 . Next year , my sister ( be ) ………will be………..a teacher .
150 . When they ( be ) ……were………young , they ( leave ) …left……….their family and ( go ) …went………to Ho Chi Minh city .

102 . Hoa ( have ) ………has……….a lot of friends in Hue .
103 . Nam and Trung always ( visit ) ……visit………their grandparents on Sunday .
104 . My father ( listen ) ……listens………to the radio everyday .
105 . The children ( like ) ………like……….to play in the park .
106 . She ( not live ) ………doesn't live…………….with her parents .
107 . Lan ( brush ) ………btushes…………her teeth after meals .
108 . The students ( not go ) …………don't go…………to school on Sunday .
109 . Nga ( talk ) ……is talking…………to her friends now .
110 . She ( be ) ………will be……………...14 on her next birthday .
111 . We ( visit ) …………will visit…………..Huong Pogoda next week .
112 . They ( live ) ……live………….with their grandparents .
113 . I ( come ) ………will come……………back tomorrow .
114 . He ( have ) …………has………….a lot of friends .
115 . She ( have ) ………is having…………..a meeting tonight .
116 . M y father ( jog ) …………jogs…………………every morning .
117 . We often ( play ) ……play………….tennis in the afternoon .
118 . What ………will……..you ( do ) ………do……….next Sunday .
119 . Phong ( watch ) ………watches…….T.V everynight .
120 . They ( go ) ……are going………..to the movies tonight .
121 . Tomorrow , She ( invite ) ………wil invite………….all friends to her birthday party .
122 . My brother ( listen ) ……listens………..to music in his free time .
123 . Our friends ( come ) ………will come……………here soon .
124 . My father never ( drink ) ………drinks………coffee .
125 . I usually ( go ) ………go……….to school by bike but tomorrow I ( go ) ………will go………………to school by bus .
126 . Jane ( play ) …………is playing……..the piano at present .
127 . He ( visit ) ………will visit…………..his grandparents next week .
128 . Jane ( play ) …………is playing…………..the piano at present .
129 . We ( not invite ) …………won't invite……....many friends to the party tonight .
130 . Hurry up ! we ( wait ) ……………are waiting……….for you .

Gọi số học sinh của mỗi lớp lần lượt là a, b, c (a,b,c \(\in\) N*)

Áp dụng tính chất dãy tỉ số bằng nhau ta có

\(\frac{a}{10}=\frac{b}{9}=\frac{c}{8}=\frac{a-b}{10-9}=\frac{5}{1}=5\)

\(\Rightarrow a=50;b=45;c=40\)

Vậy số học sinh của mỗi lớp lần lượt là 50;45;40 học sinh

40 . What time ….....does.......she ( finish ) ………finish……work every day ?
41 . He ( not usually drive ) ……………does not usually drives………………to work . He usually ( walk ) ………walks…………
43 . Mozart ( play ) …………played…………the piano when he ( be ) ………was……three .
44 . Many people prefer ( fly ) ………flying…………to ( go ) ………going………..by sea .
45 . My mother ( go ) ………goes……..to the supermarket yesterday evening but she ( not buy) ………didn't buy……
46 He ( move ) ………moved…………to Paris in 1917 and ( spend ) ……has spent………6 years in Paris .
47 . Teenagers like ( listen ) ……listening………to the latest pop music .
48 . What ……will………….you ( do ) ……do……..tomorrow morning .
49 . Children shouldn`t ( drink ) ………drink……….coffee . It ( not be ) …isn't……
Good for their health .
50 . My family ( watch ) ………watches…….T.V every night . But now we ( listen ) ………are listening……..to pop music .
51 . Yesterday Nga father ( start ) …………started………….his new job .
52 . I ( meet ) ………met…………..her at the movie theater last night .
53 . He ( go ) ………goes…….to the English club every Sunday . But last Sunday he ( not go ) …didn't go…there , he ( go ) ……went…………to the City Museum .
54 . My mother ( make ) ………is making…………a dress now .
55 . Two years ago , she ( teach ) ……taught…………at a village school .
56 . We ( travel ) ………………will travel……………to Hue next week .
57 . What ……did…….you ( do ) ………do…………yesterday morning .
58 . They usually ( have ) …………have……………dinner at home , but they ( have ) ………had……dinner in a small restaurant yesterday evening .
59 . The children ( be ) …………were………….here ten minutes ago , but at the moment they ( play ) ………are playing…………….in the yard .
60 . Could you ( show ) …………show…………me the way to the bus stop .
61 . Lan and Hoa ( go ) ………are going………..to the post office now.
62 . Liz ( need ) ………needs……….some stamps and envelopes .
63 . Hoa ( mail ) ………will mail………….this letter tomorrow .
64 . I need ( buy ) ……to buy………..a phone card .
65 . He ( phone ) ………phones…………….his parents three or four times a week .
66 . Nam wants ( send ) …………to send…………..this postcard to his pen pal .
67 . We would like ( visit ) ………to visit……………Ngoc Son Temple .
68 . My hair is dirty . I ( wash ) ……will wash………….it .
69 . We ( have ) …………will have……………an English test tomorrow.

21 . §ao and Mai ( do ) …………are doing……………the housework now .
22 . What ………does………your mother ( do ) ………do……….?
She is cooking .
23 . How ………do…………you ( go ) ………go……to school every day ?
24 . Nam ( go ) ………goes………..to work by car every day but today he ( take ) …………is taking……………a bus .25 . Where ……does…………..your father ( work ) ………work……..? In the hospital .
26 . Look ! The teacher ( come ) …………is coming……………
27 . She is very clever . She ( speak ) ………speaks………….4 languagues.
28 . Steve often ( smoke ) ………smokes………….10 cigarettes a day .
29 . We usually ( have ) ………have……………dinner at 7: 00
30 . Anne ( wash ) ………washes………….her hair twice a week .
31 . Jane ( teach ) ………teaches…………English to children .
32 . You ( meet ) ………meet………….a lot of people .
33 . He often ( go ) ……………goes…………….to the cinema .
34 . Food ( cost ) ………costs…………a lot of money .
35 . Listen ! Somebody ( sing ) ………is singing……………………
36 . She is tired . She ( want ) …………wants……….to go home now .
37 . How often ……do……you ( read ) ………read…………a newspaper ?
38 . “ Excuse me , but you ( sit ) ………are sitting……………in my place “
“ Oh , I am sorry “
39 . “ I am sorry “ I ( not understand ) …………don't understand………………..
Please speak slowly.
40 . What time ….....does.......she ( finish ) ……finish………work every day ?

1. Every morning , Linda ( get )………gets...........up at 6 . She ( have ) ………has…… breakfast at 6:10 . After breakfast , she ( brush ) ……brushes……..her teeth . She ( go ) ………goes……..to school at 6:30 . She ( have ) ……has………lunch at 11:30 at school .
2 . We ( watch ) ……watch……….T.V every morning .
3. I (do ) ………do……………my homework every afternoon .
4 . Mai and Lan ( play ) …………play……….games after school .
5 . Vy ( listen ) ………listens………to music every night .
6 . Where ( be ) ………is………..your father now ? He ( read ) ………is reading………..a newspaper .
7 . What ……do…….you ( do ) ………do………? I ( be ) …am…….a student .
8 . Where ……are…….you ( go ) ………going……….now ? I (go ) …………am going……to the market .
9 . She is cooking and we ( do ) …………are doing…………..the housework .
19 . Where is your father ? He is upstairs . He ( watch ) ……is watching…………T.V
He always ( watch ) ……………watches…………..T.V at night .
20 . Our teacher ( live ) ………lives……………..on Quang Trung street .

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