Поставить в отрицательную форму We like cold weather.

I’m good at maths.

Her birthday is in July.

They are interested in music.

I usually go shopping on Sunday

из формулы суммы первых 6 членов находим   а1+а6=3  а2=а1+d12)     a4=a1+3d  a1+3d- a1-d=0,42d=0,4  d=0,2  a6=a1+5d=a1+1     =>       a1+a1+1=3                                                    2a1=2                                                      a1=1  ответ: с) 

14)     а1=5, а21=а1+20d=15                            20d=10                                  d=0,5  ответ: c)

 

We don’t like cold weather. i am bad at maths. her birthday isn’t in july. they aren’t interested in music. i usually don’t go shopping on sunday.

There is a ball in the box. 
There is some books on the table. 
There are a lot of boys in the park.
There are a lot of pencils in that bag.
There are a lot of books in the shop.
There is a coffee in that shop.
There is cheese in the fridge.

Last night at 7:00 we watched the television set

Look ill (в задании опечатка,не cook, а Look)
catch cold
call in the doctor
feel dizzy
do morning exercises
hurt finger
eat healthy food
keep teeth healthy
ask for help