There is no doubt the earth is becoming warmer.
A.whether | B.that | C.if | D.why |
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 |
How strange! These years my birthday always falls _____.
A.on the Sunday | B.on a Sunday |
C.on Sunday | D.at a Sunday |
As _____ writer, he was _____ complete failure.
A.a, a | B.a, the | C.不填,不填 | D.a, 不填 |
This is _________ best kind of _________ pen you can get here.
A.the, the | B.the, a | C.the, 不填 | D.a, the |