1. different

2. differs

3. different from

4. differs from

5. differs than

1. to separate sepa

2. rated

3. separate

4. to be separated

5. separating

1. He thinks that she has left for Sylhet.

3. He will thought that she is leaving for Sylhet.

4. He thought that she is left for Sylhet

5. He is thinking that she leaves for Sylhet

1. Mary has been on a diet for three weeks.

2. Mary has been on a diet since three weeks.

3. Mary had been on a diet since three weeks.

4. Mary was on a diet since three weeks.

5. Mary is on a diet since three weeks.

1. asthma

2. cholera

3. dehydration

4. Tiphoid

5. headache