I often have conversations with John over ______ telephone, while keep in touch with Tom by ______ letter.
A.不填;the B.不填;a
C.the;不填 D.the; a
考点:冠词
The education of ______ young is always ______ hot and serious topic.
A.不填, 不填 B.the, a
C.不填, the D.the, 不填
As _______ unemployment is very high at the moment, it's very difficult for people to find _______ work.
A.the, 不填 B.不填,不填
C.the, a D.an, the
He spent too much time talking on ______ phone while we were all busy at _____ work.
A.the, 不填 B.a, 不填
C.不填, 不填 D.the, the
As is known to us all, _____ tiger is in _____ danger of becoming extinct.
A.the, a B.the, 不填
C.a, 不填 D.不填, the
This is _____ best kind of _____ pen you can get here.
A.the, the B.the, a
C.the, 不填 D.a, the