What _______to go swimming in a river in summer!
| A．fun is it | B．funny it is | C．a fun it is | D．fun it is |
It was at the very beginning ______ Mr Smith made a decision _____we should send for a doctor.
| A．when; which | B．that; which |
| C．when; that | D．that; that |
——I’m afraid I can’t finish the magazine within the required time.
——__________.
| A．Please go ahead | B．That’s right |
| C．Not at all | D．Take your time |
—Excuse me, Professor Smith, I was wondering if I could leave a quarter earlier today.
— _____ .
| A．Nothing the matter. | B．Sure, go ahead |
| C．Oh, why not? | D．Of course, no problem. |
Green products are becoming more and more popular because they are environmentally _________.
| A．friendly | B．various | C．common | D．changeable |
—Are you going there with us?
—If Mary wants to go, ______.
| A．I also go | B．so do I | C．so I will | D．so will I |