Gerund - Infinitive

      A. Use the correct forms of verbs in brackets:

      1. He suggests (not smoke) _______________ in this room.

      2. Do you mind (wait) _______________ for a moment.

      3. Have you finished (type) _______________ the letter yet?

      4. I’d like (lie) _______________ on the beach today.

      5. I like (lie) _______________ on the beach.

      6. He tried (not make) _______________ any mistakes but he couldn’t.

      7. If you go on (let) _______________ the dog (run) ________ after cars, he will end by (be) __________ run over.

      8. Try (forget) __________ it; it’s no good (worry) ____________ about.

      9. After (spend) ____________ days (argue) ____________, about where to go for their holidays, they decided (not go) ____________ anywhere.

      10. Do you feel like (go) __________ to a film or would you rather (stay) __________ at home?

      11. It’s no use (ask) _______________ children to keep quiet.

      12. Try (avoid) ____________ (be) ________ late. He hates (be) _______ kept waiting.

      13. After (spend) ____________ a week in the cottage, he decided that he didn’t really enjoy (live) ____________ in the country.

      14. It’s no use (argue) _______________ with him.

      15. He suggested (call) ____________ a meeting and (let) ____________ the workers decide the matter themselves.

      16. You’d better (study) _______________ hard.

      17. By (practice) ____________ everyday he can (speak) ____________ fluently.

      18. She suggests (do) _______________ another shopping.

      19. Would you mind (park) _______________ far from here?

      20. My husband hates (drink) _______________ wine in the morning.

      21. He promised (phone) _______________ me soon.

      22. The students are well-prepared (take) ______________ the final exam.

      23. Tuan is sure (win) _______________ the English speaking contest.

      24. Children should be allowed (play) _______________ freely.

      25. He is expected (arrive) _______________ in a few hours.

      26. Please let me (know) ____________ your decision as soon as possible.

      27. You seem (know) _______________ this area very well.

            - Yes, I used (live) _______________ here.

      28. I hoped (help) _______________ other people with their work.

      29. Would you like (go) _____ now or shall we (wait) ______ till the end?

            30. Will you help me (move) _______________ the bookcase?

Word form

      1. (worry)              They don’t seem particularly  ___________ about the situation.

      2. (nation)              At the International School they have pupils of 46 different _______________

      3. (narrow)                        The officer looked at him _______________ through half - closed eyes.

      4. (weigh)              Your luggage must be ________ before it is put on the aircraft.

      5. (safely)              In some cities you don’t feel ________ going out alone at night.

      6. (provide)           When designing buildings in this area, you have to make _______________ against earthquakes.

      7. (comfort)           I’ve eaten so much. I’m really quite _______________.

      8. (improve)           He’s been having treatment for 2 months now without any _______________.

      9. (threaten)           Drunken drivers pose a serious ________ to other road users.

      10. (suggest)          She made some very helpful ___________ her boss rejected them all.

Bài 1. Tìm tất cả các tập hợp X sao cho:

a/ {1;2} ∪ X = {1;2;3;4}

b/ X ⊂ {1;2;3;4}  và X ⊂ {0;2;4;6;8}

Bài 2. Xác định các tập hợp A,B sao cho:

a/ A ∩ B = {0;1;2;3;4} , A \ B = {-3;-2}, B \ A = {6;9;10}

b/ A ∩ B = {1;2;3} , A \ B = {4;5} , B \ A = {6;9}

Lớp 10A có 7 học sinh giỏi Toán, 5 học sinh giỏi Lý, 6 học sinh giỏi Hóa; trong đó có 3 học sinh giỏi cả Toán và Lý, 4 học sinh giỏi cả Toán và Hóa, 2 học sinh giỏi cả Lý và Hóa, 1 học sinh giỏi cả ba môn Toán, Lý, Hóa.

a/ Hỏi có bao nhiêu học sinh giỏi ít nhất một môn (Toán, Lý, Hóa)?

b/ Số học sinh giỏi đúng 2 môn (Toán, Lý, Hóa) là bao nhiêu?

Cho các tập hợp A = {0;1;2;3} và B = {0;1;2;3;5;7}

Tìm 3 tập hợp D thỏa mãn B ∩ D = A . Hỏi có bao nhiêu tập hợp D như vậy?

Trong kì thi học sinh giỏi cấp trường, lớp 10A có 17 bạn được công nhận học sinh giỏi Văn, 25 bạn học sinh giỏi Toán. Tìm số học sinh giỏi cả Văn và Toán biết lớp 10A có 45 học sinh và có 13 học sinh không đạt học sinh giỏi cả hai môn.

I. Making questions for the underlined words (Đặt câu hỏi cho từ gạch chân) nhận biết từ gạch chân ( )

      1. I received a letter from my father once a month. (once a month)

→..................................................................................................................................................

      2. Tom drove 60km per hour on the highway. (drove 60km per hour)

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      3. He smokes twenty cigarettes a day. (twenty)

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      4. Hue is seven hundred miles from here. (seven hundred miles)

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      5. Mary won the scholarship last week.(last week)

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      6. Mr. Smith had to borrow me money to pay for his new car.(to pay for his new car)

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      7. Physics helps us understand the natural phenomena.(Physics)

→..................................................................................................................................................

      8. Because her leg was injured, she stayed at home.(Because her leg was injured)

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      9. Robbins is forty-two years old.(forty-two years old)

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      10. Her motorcycle can go 100 kilometers an hour.(100 kilometers an hour)

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      11. The baby weighed 7 pounds when she was born.(7 pounds)

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      12.We are talking about holidays (holidays)     →..................................................................................................................................................

II. Add the FREQUENCY ADVERBS to the sentences (Đặt adv of frequency vào chổ thích hợp trong câu)

      1. I walk to school. (sometimes)

      2. Miss Lan goes to work by bus. (always)

      3. The buses are very crowded. (usually)

      4. She has to stand all the way. (often)

      5. She is late for work. (never)

      6. She has been late this week. (three times)

      7. Tom Studies at the library in the evening. (seldom)

      8. Ann is on time for class. (always)

I. Word form

      1. (safe) They are keeping her in the office for her own __________

      2. (frighten) It is _____________ to think of the horrors of a nuclear war.

      3. (fly) Our __________ will arrive at Tan Son Nhat International Airport at 6.30.

      4. (occupy) Please write your name, age and _____________ on the form.

      5. (announce) The results of the test will be _____________ next Monday.

      6. (occupation) Problems at work continued to ____________ his mind for some time.

      7. (safety) Women are ____________ drivers than men.

      8. (frightening) Don't shout! You'll ______________ the baby.