It is the way he talks with his mother is different from we were used to．
| A．that：that | B．which；what | C．that；which | D．in which;where |
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
He is so strongly built that he looks _______ he could lift an elephant.
| A．if | B．as if | C．like | D．that |
I’ll let you know ____ he comes back.
| A．before | B．because |
| C．as soon as | D．although |