Choose A, B, C, or D that best completes each sentence.

He helps his friends a lot ________ he is very busy.

A. although 

B. and 

C. so 

D. but

các bn giải ra giùm mik luôn được khôq ạ?!!

1.MY TOOTH SHOULD GO TO SEE A DENTIST

2 .TRUNG OUGHT TO PLAY LESS COMPUTER GAMES

3.MY SHIRT SHOULD BUY A NEW ONE

4 .MY FATHER OUGHT TO PRACITE PLAYING CHESS REGURALY

5.MY SON SHOULD EAT LESS MEAT AND EAT MORE VEGETABLES

3^2 .3=3^3=27