Cho biểu thức: 

P = \(\left(\dfrac{x+1}{3x^2+3x}+\dfrac{1-2x}{6x^2-3x}-1\right)\): \(\dfrac{1-x}{2x}\)

a) Rút gọn P

b) Tìm x ∈ Z đề P có giá trị nguyên

c) Tìm x để  P ≤ 1

Viết 1 đoạn văn theo kết cấu tổng-phân-hợp trình bày cảm nhân của em về tình yêu thương của các nhân vật trong bài Chiếc lá cuối cùng

Fill in each blank with the appropriate form of the word in brackets.(1,25pts)

1...................are very friendly and hospitable. (village)

 2. My grandfather owns a valuable ...........................of stamps. (collect)

3       _________a camel is the most exciting activity I have ever experienced. (ride)

Choose the word and phrase that best complete each sentence (1,5pts).

1Tim needs to ……………. his Spanish pronunciation.

A. improve                B. try                         C. enroll                     D. participate

2. The children aren’t old enough to look after..............................

A. themselves           B. ourselves              C. herself                   D. himself

3. He ................... lots of old books for 5 years.

A. recycled                B. is recycling           C. has recycled         D. will recycle

4. She worked hard ..................... pass the final exams.

A. so that                   B. in order to            C. in order that          D. so as

5. When I was a child, I ...................... follow my Mom to the market.

A. used to                  B. use to                     C. get used to            D. usually

6. They'll arrive ................. Monday, 14 July.

A. in                           B. at                            C. during                    D. on