1. The twins decided to go home by ______ as their mother was busy at work.

2. The bunch of keys, ______ you picked up at Mrs Tan's office, belongs to me.

3. The bleeding ______ the cut on Chris's forehead needs to be stopped as soon as possible.

4. I ______ for an extended deadline if I had known you were going to be late in submitting your work.

5. While I was walking towards the bus stop, I saw a young girl ______ behind the bushes, I wondered what she was up to.

6. Not only did John ______ his medicine regularly but he also watched his diet to ensure a speeding recovery.

7. "The guest-of-honour, together with the school teachers, ______ expected to arrive soon," said the teacher to her students.

8. As a rule, all students ______ speak politely to the teachers.

9. ______ Grace went to bed early last night, she woke up late.

10. How ______ salt do you need to add to the soup to make it tasty?