These exercises are difficult to do.F_____students can answe
These exercises are difficult to do.F_____students can answe
The Maths exercises are very difficult you can do them .You
The exercises are too difficult._____students can work them
These sentences are quite difficult to ______.
These ___(problem) are difficult to be solved(解决).
these exercises are different from ___
These exercises are very _____(easy/easily)
These wild flowers are so special I would do ____ I can to s
1.These wild flowers are so special I would do ___I can to s
Are you able to do these?
your question is very difficult 后为什么加to answer而不是to be answe
how often do you do these sport and exercises a______?