So complicated was the machine ______ only a skilled operator could use it.
A: that
B: so that
C: unless
D: until
A: that
B: so that
C: unless
D: until
举一反三
- The design was so ( ) that you could not find any fault in it. A: delicate B: elaborate C: fancy D: complicated
- Just as the veteran worker is skilled in the handling of machine, （） the experienced writer is skilled in the handling of his words. A: as B: so C: thus D: like
- 3. There is only one playground slide in this school, so the students have to take _________ to use it. A: turns B: the turn C: a turn D: the turns
- The machine is so old ____ it can’t be used any more ____ some of its parts are changed. A: as ; unless B: that ; unless C: that; if D: whether ; or
- This machine works very well so long as no one ____ with it. ?xml:namespace>