chia động từ

1. It took me 20 minutes (go)___there

2. he is'nt tall enough (reach) the top of the bookshelf

3. where you (spend) your summer holiday last year?

4. Mr. Smith ( work) in this company since he ( leave) Lon Don

5. Lan and Nga ( not be ) out of their room since they (buy) a new computer

6. my mother ( travel) to work by bus

7. We (have) a party next Sunday.

chọn...

1. Her mother (left/ leaves/ is leaving/ will leave) this city two years ago

2. I'll try my ( better/ best/ good/ goods) to improve my English

3. We will meet him ( for/ in/ on/ at) monday

4. He does morning exercises regulary (in order for/ so as to/ so that/ in order that) improve his heath

5. Vietnamese language is different ( as/ like/ from/ with) English language

6. Jane is ( as/ like/ the most/ more) beautiful than her sister

7. We have lived in Ha Nam (since/ for/ in/ on) 1990

tìm x
a) \(4x+x^2=0\)

b) \(3x^2-3x.\left(x+2\right)=18\)

thực hiện phép tính

a) \(\left(3-2x\right).\left(x+1\right)+x.\left(2x-1\right)\)
b) \(\frac{x^2+9}{x^2+3x}+\frac{6}{x+3}\)
c) \(\frac{2+x}{2-x}+\frac{4x^2}{4-x^2}+\frac{x-2}{2+x}\)
d) \(\left(x^3+4x^2+6x+4\right):\left(x+2\right)\)

phân tích

a)\(3xy^2+6x^2y\)
b) \(a^3+20^{^{ }2}-4a-8\)
c) \(4x^2-4y^2+4x+1\)

đặt lại câu nghĩa không đổi

1) "where is the post office?" A visitor asked Nam

-> A visitor asked Nam.......

2) May i borrow your bicycle?

-> would you mind........?

3) We spend two hours finishing the housework

-> it took us.................

4) Remember to turn off the computer before going out

-> don't..........

5) Alexander G.Bell invented the telephone

-> the telephone..........

6) John only has a little free time. Linda has lot

-> John has............

Vì sao quân minh tạm hòa (khởi nghĩa lam sơn)?
Nêu tinh thần chiến đấu của nghĩa quân lam sơn?

Nêu 1 số cuộc khởi nghĩa tiêu biểu ở thời lê sơ (đg trog tình trạng suy yếu) ? cuộc k/n nào tiêu biểu? vì sao?
Nêu tình hình k/tế lê sơ?