Tosucceedinascientificresearchproject________.
A、oneneedstobepersistentThistest________anumberofmultiplechoicequestions.
Herefusedtotelluswhetherhe________(undertake)thejob.
“Have you moved into the new flat? ” “Not yet. The rooms ________ (paint). ”
He refused to tell us whether he ________ (undertake) the job.
This diploma ( 毕业文凭 ) ________ that you have completed high school.
