Tính nhanh:
1,1 + 2,2 + 3,3 + 4,4 + 5,5 + 6,6 + 7,7 + 8,8 + 9,9
A. 39,5
B. 49,5
C. 50,5
D. 60,5
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Giải :
1 người bắt tay với 9 người còn lại nên có số cái bắt tay là :
9 x 10 = 90 ( cái)
Mà mỗi người chỉ bắt với nhau 1 cái nên số cái bắt tay là :
90 : 2 = 45 ( cái)
Đáp số : 45 cái
=> Chọn đáp án : A. 45
Tỉ số % của số bi xanh và số bi trong hộp :
24:40x100=60%
=> Chọn C
#H
IV. Complere the sentences. Use an expression from the list, put the verb into the form.
have a baby have a break have a chat have difficulty have a shower have a look have lunch have a party have a nice time have a good flight
1. I don't eat much during the day. I never have lunch.
2. David starts work at 8 o'clock and …………has a break……….... at 10:30
3. We ………….had a party……...... last week. It was great – We invited lots of people.
4. Excuse me, can I …………have a look…….... at your newspaper, please?
5. Jim is away on holiday at the moment. I hope he ............. will have a nice time ...........
6 I met Ann in the supermarket yesterday. We stopped and …………had a chat………....
7. A: …………Did you have difficulty in………... finding the book you wanted? B: No,I found it OK
8. Suzanne ...............had a baby ........ a few weeks ago. It's her second child.
9. A: Why didn't you answer the phone?
B: I ……….was having a shower..…………………....
10. You meet your friend Sally at the airport. She has just arrived. You say:
Hi, Sally. How are you? .................Did you have a good flight............... ?
Tham khảo:
3. I haven't got a ladder
4. We didn't have enough time
5. He didn't have a map
6. She hasn't got any money
She doesn't have any money
7. I haven't got any energy
I don't have enough energy
8. They didn't have a camera
Trả lời:
B. 49,5
HT
Đáp án B.49.5