Look out the traffic when crossing the road.
| A．at | B．of | C．for | D．with |
We’ll never give up _______ they may do or say .
| A．although that | B．no matter how | C．whatever | D．however |
No matter how hard he worked, ___ ____
| A．he could not do any better | B．and he could not do any better |
| C．so he could not do any better | D．but he could not do any better |
I’ll start early , _______I oversleep.
| A．unless | B．though | C．if | D．whether |
_______ you begin the work , you must carry it out through to the end.
| A．When | B．Though | C．Sometimes | D．Once |
I’ll start early , _______ it is dark or light .
A. howeverC. whether C. if D. though