Task 2. choose the right letter.1. they ……. it today. a) did b) do c) have done 2. listen! my sister ……. the piano. a) plays b) is playing c) play 3. he ……. the test yet. a) haven’t write b) hasn’t written c) didn’t write 4. ……. you ……. an apple pie tomorrow? a) will … cook b) did … cook c) do … cook 5. my friends ……. the zoological society three months ago. a) joined b) have joined c) will join