câu 15 what did you do last night ? i .............. mu homework 
a, did 
b, do 
c, will do 
câu16 last year , i went home ..... taxi 
a by
b in 
c at 
câu 17 ..........do you usually do after soochl ? i reat books and   watch tv
a how 
b what 
 c where 
câu 18 did you go to the party?............ 
a yes , i do 
b no ,i don''t 
c no, i dindn't
câu 19 will you be free tomorrow
a yes, i did 
b, yes, i will 
cyes, i do 
câu 20 we will ........... our grandparents next sunday 
a to meet
b meet 
c meeting