1. Good and bad

2. Family relation

3. With all energy

4. Without any delay

1. The bill is to be paid today

2. Let the bill be paid today

3. The bill be paid today

4. The bill paid today

1. has known

2. knows

3. knew

4. had known

1. on

2. to

3. at

4. with

1. He is raw in mathematics

2. He is weak in mathematics

3. He is bad in mathematics,

4. He is backward in mathematics.