1. She can't come to the phone now because she for tomorrow's test. (Correct)(Incorrect)
She can't come to the phone now because she is studying for tomorrow's test. (Correct)
2. They must be at the sports ground now. They usually basketball on Fridays. (Correct)(Incorrect)
They must be at the sports ground now. They usually play basketball on Fridays. (Correct)
3. I my work already. I'm ready to go for a walk with you. (Correct)(Incorrect)
I have finished my work already. I'm ready to go for a walk with you. (Correct)
4. I breakfast right now. Can you call a little later? (Correct)(Incorrect)
I am cooking breakfast right now. Can you call a little later? (Correct)
5. I this book. Can I borrow it for a week or so? (Correct)(Incorrect)
I haven't read this book. Can I borrow it for a week or so? (Correct)
6. Maria is good at languages. She French, Spanish and German. (Correct)(Incorrect)
Maria is good at languages. She speaks French, Spanish and German. (Correct)
7. So far, he five stories for children. (Correct)(Incorrect)
So far, he has written five stories for children. (Correct)
8. We for their answer for two months already. (Correct)(Incorrect)
We have been waiting for their answer for two months already. (Correct)
9. She since Monday. (Correct)(Incorrect)
She has been sick since Monday. (Correct)
10. She since noon. Should we wake her up? (Correct)(Incorrect)
She has been sleeping since noon. Should we wake her up? (Correct)