put the verbs in correct tense :

1, they (do) .............their homework at the momemt

2, i sometimes (go) ........out at night

3, we (have) ......... a party tonight

4, look ! the boys (run) ........ after the train

5, last night , my mother (come) ...............late

6, Mr .Pike (visit) ...........us next summer

7, Hoang seldom (bursh) ..........his shoes

8, I (not watch ) ...........TV last night

9, What (you/do) ........yesterday

7,

tìm x biết :

a, x^2 -4x =12

b,(5x +1)^2 - (5x-3)(5x+3) =30

c,(x-1)( x^ 2 +x +1) + x(x+2)(2-x)=5

d,5x(x-3)^2 -5(x-1) ^3 +15(x-4)(x+4)=5

giúp mình với nhé mình đang cần gấp lắm..