Số đo các góc của tứ giác ABCD theo tỷ lệ A:B:C:D = 4:3:2:1. Số đo các góc theo thứ tự đó là?

A.  120 0 ; 90 0 ; 72 0 ; 36 0  

B.  140 0 ; 108 0 ; 72 0 ; 36 0  

C.  144 0 ; 108 0 ; 72 0 ; 36 0  

D. Cả A, B, C đều sai. 

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

  I……………………since I was seven.

A. can swim

B. could swim

C. have been able to swim

D. was able to swim

Circle the word whose stress is on the first syllable.

A. cancel

B. surprise

C. propose

D. although