I remember a ____ famous scientist said that we should believe in ourselves first of all.
Yesterday I went ________ I spent the holiday last summer.
The classroom is big enough________,but we'll have to move if we have more students.
Through the window,we can see his large house________.
Mr.Smith as well as two of his students ________ the experiment with care at the moment.
A lot of banks are ________ to the new electronic system because it's more efficient.