The scientific research on how to protect the rare animals is ________. Many scientists are working hard to find new way to raise the animals by man.
The weight-loss pills really ______ and she is becoming slimmer and slimmer.
________ you are busy, let us help you finish the project.
She’s ____ to know where you’ve been.
He _______ cards with his friends, but now he _______ a walk after supper.
Instead of sending e-mail, Nancy talks with her mother on mobile phone once a week.