There are two American boys and ____English girl in my class.
She couldn’t stop ________ when he told her the funny joke.
It _____ four years since we ______to learn English.
— When shall we go to watch the basketball match in the sports centre? — Not until the work _________ tomorrow.
–I phoned you at 5:00 yesterday afternoon, but nobody answered me. -Sorry. I ______ the flowers in the garden at that time.
-- __________ try your best to help people in need? -- It will be an experience you will never forget.