Despite the fact that Lucy is a lovely girl, she _____ be extremely difficult to work with sometimes.
Child as he was,he ________ up with a good idea to solve the problem.
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.