The trip is only two days from flow．We’d better a plan about it．
A．catch up with B．get on with
C．go on with D．come upwith
The thief was last noticed the office building by the back door on the screen．
A．enters B．entering
C．entered D．to entering
The scientist devoted much time to on the 9roject that he succeeded in the end．
A．so；working B．so；work
C．such；working D．such；work
the sun was not yet up，many people were already taking exercise in the square．
A．As B．If C．Though D．Until
The of some wild animals reminds us the problems on environment．
A．loss；of B．loss；of
C．loss；that D．loss；to
一How did you break my most valuable vase?
一Sorry,but I broke it by accident．
A．the；／ B．the；an C．／：／ D．／：the
