Câu hỏi: Sorry, I can't find the number. I remember writing it on ............. back of an envelop.

A. a

B. an

C. the

D. x

Câu 1: Miss Linda speaks.................. Chinese very well although she  is  from......... UK.

A. the/  X 

B. X/  the

C. the/  the

D. X/  X

Câu 2: Scientists sent ............ expedition to ............ Mars during .......... 1990s.

A. an/  X/  the

B. an/  the/  the

C. X/  X/  the

D. X/  X/  X

Câu 3: Look at.................. sun. It is rising.

A. a

B. an

C. the

D. x

Câu 4: Rita is studying........... English and ...........math this semester.

A. the/  X

B. X/  the

C. the/  the  

D. X/  X

Câu 5: Rita plays .......... violin and her sister plays .......... guitar.

A. the/  X

B. the/ a

C. the/  the

D. X/  X

Câu 6: David attended .......... Princeton University.

A. a

B. an

C. the

D. x