Выберите правильный ответ ,время present perfect
1 Helen has never/ever been to Italy.
2 We have already/yet bought the plane tickets.
3 Have you been on the sightseeing tour yet/just?
4 Madeleine has since/just missed her flight.
5 I haven't ridden a bike since/for I was a child.
6 Have you since/ever been diving with sharks?
7 I haven't been camping for/since three years.​

1. We never SMOKE cigarettes at any time. John always SMOKES a pipe but we PREFER cigars. 2. My wife's mother HAS BEEN LIVING with us for the last six months. 3. She IS GOING AWAY today. My wife IS HELPING her with
her packing now. 4. The boys HAVE BEEN EATING green apples all day.
Now they ARE ill, and their mother IS TALKING to the doctor on the phone.
5. The boys HAVE GONE to bed because they are ill. The doctor  HAVE prescribeD some medicine. Their mother IS GIVING them some now. 6. My brother usually VISITS his business friends two or three times a year. He
IS TRAVELLING in Germany at present. 7. She HAS READ many books on astronomy and so she really KNOWS the subject. 8.1 HAVE BEEN LISTENING to you for twenty minutes but I HAVEN'T understOOD anything.
People usually THINK first and SPEAK afterwards. 9. Peter HAS BEEN DRIVING a car for years but he HAS never driveN at night before. 10. John IS goING out).  He HAS just PUT  his coat on. 11. Peter HAS BEEN readING
in bad light and now he IS havING a headache. 12. Our train usually LEAVES at two o'clock. Father HAS BEEN traveLLING by that train every Friday for five years. 13. Look out of the window.IS IT RAINING? I hope not as I HAVE not BROUGHT a raincoat today.

1.There isn't ... homework for tomorrow.
1) much - потому что homework неисчисляемое существительное
2.Usually there is ... snow darung winter in Great Britain.
 3) a little - потому что snow неисчисляемое существительное
3.I want to know ... foreign languages. 
 2) a lot of - потому что language исчисляемое существительное и нельзя брать much или a little (a lot of употребляется и с исчисляемыми и с неисчисляемыми существительными)
4. How ... students are there in the class
3) many - потому что student исчисляемое существительное