After Jack had sent some e-mails, heworking on his project.
had started
has started
started
starts
It was about ten minutes after we arrived at a small village __________ it began to pour down.
-- Mum,can I go on a holiday with my classmates this summer vacation? -- OK.You __________ have a chance if you get along well with your studies.
Not having found __________,he had to go home with empty hands.
At the top of the mountain,__________ to see the blue sky,the kids made cheerful noises of all kinds.
Parents are advised to put books __________ they are easily accessible to children .