Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Did you happen to run into George last week?

A. Was it a week ago that you last saw George?

B. Where do you think George was all last week?

C. Have you got any idea what happened to George last week?

D. Did you, by any chance, see George last week?

Điền các chữ số vào dấu hỏi và vào các chữ trong biểu thức sau :

a, (? ? x ? + a) x a = 123

b, (? ? x ? – b) x b = 201

Rewrite sentences without changing the meaning

There are some stilt houses in my village.

A. My village has some stilt houses.

B. Some stilt houses has my village.

C. There some my village stilt houses.

D. In my village there have some stilt houses.

Với 2 alen A và a nằm trên nhiễm sắc thể thường, gen trội là trội hoàn toàn. Nếu không phân biệt giới tính, trong quần thể sẽ có bao nhiêu kiểu giao phối khác nhau?

A. 6 kiểu

B. 4 kiểu

C. 2 kiểu

D. 3 kiểu

Answer the following questions

An increasing number of people are now going on (1) ________ to Egypt. Last year, for example, about one and a half million tourists visited this country. The population of Egypt is about fifty million and the (2) ________ is Cairo, a busy city of just under nine million people. Although the weather is hot and dry and most of the country is desert, the average temperature from October to March is not too high. The most (3) _______ sights are the pyramids at Giza. However, it is also pleasant to visit Alexandria, Port Said and several other places and do as much (4) ________ as possible in the time available. A trip to Luxor is an unforgettable experience. It is not difficult to go there because there are frequent (5) ________ there from Cairo.

Why is it not difficult to go to Luxor?

Tìm tập nghiệm S của bất phương trình  log 2   x 2 < 1

A.  S = - 2 ; 2 / 0

B. S = - ∞ ; 2 / 0

C.  S = - 2 ; 2

D. S = 0 ; 2

x=0