Câu 1: Choose the sentence with the same meaning to the first:
Before people invented newspapers, town criers would go through city streets ringing a bell to shout the latest news.
A. Before newspapers has been invented, town criers would go through city streets ringing a bell to shout the latest news.
B. Before newspapers have been invented, town criers would go through city streets ringing a bell to shout the latest news.
C. Before newspapers were invented, town criers would go through city streets ringing a bell to shout the latest news.
D. Before newspapers was invented, town criers would go through city streets ringing a bell to shout the latest news.
The way we communicate (36) ……………. our friends has changed. These days, we have conversations on the computer or the mobile phone. We don't write (37) ……………. much more. We write emails instead. Internet sites (38) ……………. Facebook help us find old friends, talk with other people and join groups with similar interests. Facebook is also useful if you want (39) ……………. people to a party or a concert. The good thing is we can invite lots of people at the same time, so it's quicker and cheaper (40) ……………. sending lots of invitations.
Trên một bàn là điện có ghi 220V – 1 000W. Những con số này cho biết gì?
A. Hiệu điện thế của bàn là nhỏ hơn 220V thì nó sẽ hoạt động bình thường
B. Công mà dòng điện thực hiện trong một phút bằng 1 000W
C. Công suất tiêu thụ của bàn là khi hoạt động bình thường là 1 000W
D. Công suất tiêu thụ của bàn là khi hoạt động bình thường luôn nhỏ hơn 1 000W