你可能感兴趣的试题
could help could to help helped Helping
introduce to be introducing be introduced to have been introduced to
ought to help must help must have helped ought to have helped
would help must have helped would have helped might help
He was offered a part-time job. He was honored with a scholarship. He helped his teacher construct a robot. He helped in the computer laboratories.
could meet might have met might meet would meet
was, had helped was , would have helped had been, would had helped had been, would help
was; had helped was, would have helped had been; would have were; would have helped
Should Bob know Had Bob known Were Bob to know Have Bob known
was, had helped was, would have helped had been, would had helped had been, would help
have been introduced be introduced have introduced introduced
could help could to help helped Helping
was;had helped was;would have helped had been;would have helped were;would have helped
could help could to help helped helping
could meet might have met might meet would meet
could meet might have met might meet would meet
湘公网安备 43130202000226号