The old scientist has been invited to a party ________ next Monday evening.
We hope to move to the country in the ________ future.
I always prefer ________ a bike rather than ________ to work.
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.