поставьте в нужное время (презент симпл или презент континиус)

1)she IS always (being) late for classes.
2)i (was writing) this letter to you while the children (are playing) on the beach.
3)if we (start) at nine, we wIll have plenty of time for the shops. we (are) free till half past four.
4)they always (tell) him everything. so i (think), he (knows)about it already.
5)this carpet (costs )only 30 dollars. why not bUY it?
6) he IS still (trying ) to find a job but there (isn't) much work available at present.
7) believe me, i (think) about you all the time.
8) i (don't know) how they (make) both ends meet. they (have) six children and ( don't earn ) very much.
9) my mother (thinks) that wind-surfing (is ) dangerous.
10) the police ARE/IS still (investigating) the case.
11) people (like) stability in life.
12) they (are opening ) a new McDonald -- tomorrow.
13)the English (believe) that their home (is) their castle.
14)Mike (is arriving) in three days. We can not wait until he (comes). Everyone (looks forward) to seeing him.
15) Mrs. Jones seldom(travels) outside the village where she (lives) , doesN'T she?
16) when he (has) a problem to solve he will work at it until he ( finds) an answer.
17)the equator (runs) round the middle of the earth.
18) i (like) to listen to music, it (helps ) me relax after a busy day.
19) when DO snakes (lose) their skins?
20) the English (like) coal-fires even though they (don't produce) much heat.

Present Continuous кунилингус