.
They thought about it for a long time, but still couldn’t ________ a solution.
A.come over |
B.got along with |
C.came out |
D.come up with |
.
Many wild animals in the world _____ , so we must take measures to protect them.
A.are dying out |
B.have died out |
C.died out |
D.die out |
.
________ on the radio or see on TV is only a small part of all the wonderful music that is waiting for us.
A.What |
B.That |
C.Which |
D.All what |
.
— Would you like to go to the exhibition with me, Dorothy?
—I have got no interest in it; ______ , I have lots of emails to send.
A.otherwise |
B.besides |
C.however |
D.therefore |
.
---Though I met with one difficulty after another, I _____ to get through with it.
--Congratulations to you!
A.hoped |
B.tired |
C.wanted |
D.managed |
.
You may fly to South Korea next Friday, ______ you don’t mind changing planes on the way.
A.as far as |
B.provided |
C.unless |
D.supposing |