John’s never willing to change his mind. It is no use ______with him.
| A．to argue | B．arguing | C．argued | D．having argued |
I don’t think he is ______ to come to our help when we get into trouble.
| A．maybe | B．possible | C．likely | D．probable |
Tom ________ in the library every night over the last three months.
| A．works | B．worked |
| C．has been working | D．had been working |
Reading is ________ good habit. Stick to it, and you’ll make ________great progress.
| A．a; / | B．a; a |
| C．the; a | D．/ ; a |
-----May I ask a question after class, Sir?
-----_______, but not during my lunch break.
| A．I’m sorry | B．Anytime |
| C．Certainly | D．Go ahead |
We went through a period _______ communications were very difficult in the rural area.
| A．which | B．whose | C．that | D．when |