мне хотя бы все что сможете

1 she has been working on the problem all her life

has she?

2 the students have been translating the text for two hours

have they?

3 it has been snowing since midninght

has it?

4 he has been writing the novel for seven years

has he?

5 i have been doing sums for two hours

have you?

6 jane has been collecting postcards for twenty years

has he?

7 i have been waiting for them for half and hour

have you?