"Have you paid your telephone bill?""No, but I________yesterday."
A: ought to pay it
B: ought to have paid it
C: must pay it
D: must have paid it
A: ought to pay it
B: ought to have paid it
C: must pay it
D: must have paid it
举一反三
- 4. Have you ever realized that attention ______ your pronunciation? A: must be paid B: must pay to C: ought to be paid to D: should be paid
- Much attention must ______ to the development of science and technology. A: pay B: to pay C: be paid D: have paid
- He tried to find some excuse for the debt, but I insisted that he ______ it off at once. A: must pay B: ought to pay C: paid D: pay
- he demanded that I ______ the bill by Friday at the latest. ( ). A: must pay B: pay C: paid D: to pay
- Taxes _________________ on or before April 15th. Payments __________________ to the government on or before April 15th. A: have to pay; must have been sent B: have to be paid; must be sent