Британский ЯЗЫК 10-11 кл! 39б 3. We ... this work by six

Британский ЯЗЫК 10-11 кл! 39б

3. We ... this work by six o'clock tomorrow. a) have completed; b) will have completed; c) will complete; d) will have been completing.
4. The streets are wet because it... for hours. a) had been raining; b)has rained; c) had rained; d) has been raining
5. We ... for seven hours when the sun sets. a) will have flown; b) have been flying; c) have flown; d) will have been flying.