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look up look down look down on look up to
hasn’t she has she didn’t she did she
had; Yes has; No couldn't; Yes did; No
he has failed;live up to he failed not;come up with has he failed;live up to did he failed; come up with
has been died has dead has died has been dead
has been conducting has conducted had conducted had been conducting
could ; Yes has ; No did ; No couldn’t ; Yes
although while but though
Having failed Having been failed Failed To fail
have failed had been failed has failed will be failed
third，four three，fourth t
had ; Yes has ; No couldn’t ; Yes did ; No
he has failed; live up to he failed not; come up with has he failed; live up to did he failed; come up with
go on come on get up give up
worked works is working has been working
I don’t think so Don’t worry Why not ? What a shame
the, a a, / / , the a, the
look up look down look down on look up to
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