Don’t give up regardless of difficulty and failure, you’ll never achieve your goals.

Don’t give up regardless of difficulty and failure,         you’ll never achieve your goals.

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and

but

推荐题目

Scientists say it may be five or six years ______  it is possible to test this medicine on human patients.

#92459

before

after

since

when

Just as Professor Scotti often______  it, success is ninety-nine percent mental attitude.

#95177

gets

makes

puts

means

 It was the first time that I ______ Jackson’s songs.

#92057

have listened

have listened to

had listened to

had listened

It is known to all that every minute ____ full use of____ the lessons will benefit students a great deal．

#93529

which makes; studying

when made; to study

that made; to study

which is made; studying

Some scientists believe that         is no doubt         a cure for AIDS will be found.

#93048

it; that

it; whether

there; that

there; whether

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