—Shall I help you carry your travel case to the train ,Granny? —Oh,no,my boy.It is heavy.Thank you anyway.
Mr. Green is said _____ an experiment to prove the new method of solving the problem when young.
—— Have you considered _____ your job as a teacher?——Yes. I like the job because a teacher is often considered _____ a gardener.
The monument was built in honor of the explorer who was believed _____ the river.
You will see this product made in this factory _____ wherever you go.