--If you have any trouble, be sure to call me.
–__________________.
| A．I am glad to hear that. | B．I will. Thank you very much. |
| C．I have no trouble. | D．I will think it over. |
Why don’t you consider ____ through the jungle..
| A．travelling | B．about trekking | C．to trek | D．trekking |
— Whose book is this?
—It must belong_________.
| A．Diana | B．Diana’s | C．to Diana | D．to Diana’s |
－Who’s that girl swimming in the pool? Is it Lucy?
－It be Lucy. She is sleeping in her bedroom now.
| A．may | B．can’t | C．must | D．should |
My grandmother found watching TV _________ but I enjoyed it very much..
| A．frustrating | B．frustrated | C．is frustrating | D．frustrate |