I went to the dentist.

1,I wore uniform to school yesterday.
2,He went to the post office last Sunday.
3,She taught him Vietnamese two years ago.
4,They spent an hour to cooking meal.
5,We sent a letter for her last year.
6,They met in the cinema last week.
7,Students of my school were good and friendly.
8,My sister did her homework yesterday.
9,My brother got up late because yesterday was Sunday.
10,He died in 1980.

English Department Announcement

for the first time,the university will offer a new night class called Survey of English Literature next semester.It will be the first of our core classes being offered at night.The change is designed to meet the needs of students who wish to take classes in the evening.Second,by adding this new class,it will expand the offerings of the literature department,allowing the department to offer more classes to attract a growing student base.

The context of the film takes place in an apartment in Manhattan, his life turned upside down when Max as their owners bring home sloppy mongrel dog named Duke. But then we have to leave the debate behind the discovery of a cute white bunny named Snowball is building an army of abandoned pets. They are determined to avenge all happy pets are owned by the same employer ... "

1, Miss Lee often (write) writes......... when he (be) was........ young.

2, He (leave) ..left......... home two weeks ago.

3, You (speak) ...Did .you speak..... to Mrs. Bakers yesterday?

4, Columbus (discover) .discovered......... America more than 400 years ago.

5, I (not can)don't can ........... remember when I last (see) ...saw........ her.

6, When Nguyen Du (die) .died..........? I (not know) ...don't know....... when he (die) ....died......

7, Be quite! The teacher (be) .is........ angry

8, Some animals (not eat) ..don't eat........... during winter.

9, Listen! The bird (sing)....is singing.......

Hỗn hợp X gồm 3 axit đơn chức mạch hở trong đó có hai axit no là đồng đẳng kế tiếp và một axit không no có một liên kết đôi. Cho m gam X tác dụng với dung dịch chứa 0,7 mol NaOH. Để trung hòa lượng NaOH dư cần 200ml dung dịch HCl 1M và thu được dung dịch D. Cô cạn cẩn thận D thu được 52,58 gam chất rắn khan E. Đốt cháy hoàn toàn E rồi hấp thụ toàn bộ sản phẩm khí và hơi vào bình đựng dung dịch NaOH dư thấy khối lượng bình tăng 44,14 gam. Thành phần % khối lượng axit không no là

A. 44,89     

B. 48,19          

C.  40,57    

D.  36,28