Ta có: \(5^{36}=\left(5^3\right)^{12}\)\(=125^{12}\)
           \(11^{24}=\left(11^2\right)^{12}=121^{12}\)
Vì \(125>121\) nên \(5^{36}>11^{24}\)
Vậy \(5^{36}>11^{24}\)

3. D
4. C
5. D

II. Tag questions: Fill in the blank with the right tag.

1.       They don’t work in the bank, _____do they______?

2.       Your mom cooks very well, _____doesn't she______?

3.       She doesn’t feel well, _____does she______?

4.       Your friends don’t play games, _____do they______?

5.       The children watch TV a lot, _____don't they______?

B. MOCK TEST

6.       This is the first time I ___________ this film.

A. am seeing       B. saw                                       C. see                                         D. have seen

7.       They haven’t seen each other ______________ Christmas.

A. since                  B. for                                          C. at                                            D. in

8.       He was born in England. English is his _____________.

A. mother tongue                                                  B. first language

C. foreign language                                              D. A and B are correct

9.       _____________ is Teachers’ Day in Malaysia?

A. Who                   B. What                                    C. Where                                 D. When

       100. People go to a __________ to look at the famous works of art.

A. stadium            B. gallery                                 C. theater                               D. fair

        101. You should _____________ your lesson before the examination.

A. read                    B. look                                      C. revise                                   D. study

        102. Keep all dangerous things out of children’s _____________.

A. hands                B. place                                    C. reach                                    D. head

        103. Students should work ___________ to make their parents happy.

A. hard                    B. hardly                                  C. in hard way                      D. more hardly

        104. What are ____________? – They are pens.

A. This                     B. that                                       C. those                                    D. there

        105. They spent a lot of money on food and clothes.

A. A lot of money was spent on food and clothes.

B. A lot of money were spent on food and clothes.

C. A lot of money on food and clothes were spent.
D. A lot of money on food and clothes was spent.

D

II. Choose the best answer(A, B, C or D).

1.  VTV is a __________ TV channel in Vietnam. It attracts millions of TV  viewers in Vietnam.

A.  national                              B.  international               C.  local                   D.  wide

2.  What’s your __________ TV programme?

A.  best                      B.  good                          C.  favourite              D.  like

3.  My family enjoys watching game shows __________ they are very exciting and interesting.

A.  so                        B.  because                       C.  but                       D.  and

4.  - __________ do you like the modern English programme?

- Because it helps me with my English.

A.  What                     B.  Where                        C.  Who                     D.  Why

5.  Disney channel is one of the most __________ channels __________ children.

A.  good – for             B.  exciting – of              C.  popular – to       D.  popular – for

6.  - __________is that TV programme directed by?

- By a famous Vietnamese director.

A.  What                  B.  When                       C.  Where                        D.  Who

7.  The football match is on at 2 am __________ I can’t watch it.

A.  so                         B.  because                      C.  but                      D.  then

8.  My brother wants to become a __________ to tell TV viewers what the  weather is like.

A.  newsreader            B.  actor                    C.  weatherman                          D.  producer

20.  My sister often __________ badminton in her free time.

A.  play                    B.  plays                         C.  playing                     D.  to play

10.  __________ are films by pictures, not real people and often for children.

A.  Documentary      B.  Cartoon             C.  Love stories             D.  Detective story

11.  Are there any good programmes __________ teenagers on TV tonight?

A.  to                                 B.  of                          C.  with                        D.  for

12.  My father works late tomorrow, so he will __________ the first part of the  film on VTV1.

A.  miss                           B.  lose                        C.  forget                     D.  cut

13.  That TV programme is not only interesting __________ it also teaches  children many things about family and friendship.

A.  and                           B.  so                            C.  because                  D.  but

14.  - __________ is the weather forecast programme on?

- At 7.30 pm every day.

A.  what                          B.  how                       C.  when                        D.  where

19.  If you want to know what the __________ is like tomorrow, watch the  weather forecast.

A.  weather                  B.  music                         C.  world news              D.  game show

16.  Children can participate in a TV __________ for a game show or quiz show.

A.  channel                  B.  competition            C.  studio                         D.  cartoon

Mình làm câu a nhé
 Ta có: 3¹⁰⁰ = 3⁹⁶ . 3⁴ = 3⁹⁶ . 81 
Mà 3⁹⁶ . 81 ⋮ 81 (81 ⋮ 81)
=> 3¹⁰⁰ ⋮ 81

1. False
2. True
3. False
4. False
5. True
6. False
7. True
8. True

Task 7. Chọn đáp án phù hợp.

1. I (have)___________ a good time tonight.

A. is going to have     B. are going to have     C. am going to have

2. Janet (help)___________ me.

A. is going to help     B. are going to help     C. am going to help

3. (he/ drive)__________ the car?

A. is he going to drive     B. am he going to drive    C. are he going to drive

4. We (stay)__________ at home tonight.

A. are going to stay     B. am going to stay     C. is going to stay

5. (you/ play)__________ tennis with Jenny?

A. am you going to play    B. is you going to play    C. are you going to play

Task 8. Read the situations and complete the dialogues. Use “going to”

1. You have decided to tidy your room this morning.

FRIEND: Are you going out this morning?

YOU: No, I'm going to tidy my room.

2. You bought a sweater, but it doesn't fit you very well. You have decided to take it back.

FRIEND: That sweater is too big for you.

YOU: I know, I'm going to take it back.

3. You have been offered a job, but not tot you have decided not to accept it.

FRIEND: I hear you've been offered a job.

YOU: That right, but I'm not going to accept it.

4. You have to phone Sarah. It's morning now and you have decided to phone her tonight

Friend : Have you phoned Sarah yet?

YOU: No, I'm going to phone her now.

5. You are in a restaurant. The food is awful and you've decided to complain.

FRIEND: This food is awful, isn't it?

YOU: Yes, it's disgusting. I'm going to complain about it.

\(64\cdot4^x=16^8\)
\(\Rightarrow4^3\cdot4^x=4^{16}\)
\(\Rightarrow4^{3+x}=4^{16}\)
\(\Rightarrow3+x=16\)
\(\Rightarrow x=13\)