He hurried to the booking office only ______ that all the tickets had been sold out.
Though I’ve tried very hard to improve my English, by no means ___________with my progress.
Science and technology have in important ways contributed to the improvement of agricultural production.
He is very sick. I insist that a doctor __________ immediately.
In the novel, the two cities referred to __________ London and Paris.
All the task __________ ahead of time, so they decided to go on holiday for a week.