Question

Fill in the blanks with appropriate modal 1. we...... obey our teachers (have to /must) 2.she.......pass this time. (ought to\has to) 3.he ........not buy a car. (has to/needs)4.he works hard least he....... fail (should\must)

Answer 1

Explanation:

1- must

2-has to

3- need

4- should