____________better ways for digging tunnels__________, the first railway tunnel under the River Thames was dug in 1884.
| A．As , developing | B．With, developed |
| C．As , were developed | D．With, development |
Sarahpretendedtobecheerful,_____nothingabouttheargument.
| A．says | B．said | C．tosay | D．saying |
Thenextthinghesanwassmoke_____formbehindthehouse.
| A．rose | B．rising | C．torise | D．risen |
一It might be cool to see a film this afternoon．
一Yes，________?
| A．why not | B．so what | C．why | D．What |
Tom is________ than any other players in the school team．
| A．tall | B．taller | C．tallest | D．more tall |
Piano is a word________ was originally borrowed from Italian．
| A．where | B．who | C．which | D．Whose |