— I’m on ______ diet to lose weight.
— You should take ______ exercise as often as you can.
| A．\; \ | B．\; a | C．a; \ | D．a; a |
— I suppose there’ll be a lot of arguments.
— _______
| A．As you like. | B．No problem. |
| C．That’s a good idea. | D．I should imagine so. |
Parents should pay attention to areas _______ their child is having difficulty and spend extra time to help him or her master those skills.
| A．as | B．where | C．why | D．when |
We apologize for any inconvenience you _______ have been caused by the delay of the flight.
| A．may | B．would | C．must | D．need |
The police say there is a $50,000 _______ for any information that helps them find the killer.
| A．income | B．fee | C．bill | D．reward |
Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.
| A．while | B．or | C．for | D．so |