Đổi sang thể phủ định và nghi vấn :

1) Their friends are wiriting Englishwords . 2) There is a light on the ceiling . 3) Mai brushes her teeth every morning . 4) Nam has breakfast at 6 every day . 5) He takes a shower every morning . 6) My brother is working in his room . 7) I have lunch at twelve . 8) There are many flowers in the garden . 9) He walks his office every day . 10) We are having lunch now . 11) It's half past six . 12) They do their homework every night. 13) The book are new . 14) I'm reading a book . 15) Nam goes to school by bike every day . 16) They work in a factory. 17) She has an oval face . 18) They are watching TV now . 19) I go to bed at 10.00 p.m every day . 20) That is my car. 21) Mai gets up at six every morning . 22) Thu and Lan go to school by bike every day.

Hàng hóa giữa Đông Nam Bộ và Campuchia chủ yếu vận chuyển qua quốc lộ

A. 51.

B. 22.

C. 1A.

D. 14.