—Do you know what EU stands for, Tommy?
—Sure．It stands for the European Union,______ European political and economic organization that encourages trade and friendship between ______ countries that are members．
| A．an; the | B．a; the | C．the; / | D．an; / |
To my delight, the snakes, carefully, turned out to be no trouble and all went well according to the plan.
| A．monitoring | B．being monitored | C．having monitored | D．monitored |
Catch the star that holds your fate , ______that forever twinkles within your heart.
| A．one | B．the one | C．it | D．that |
We have been excavating layers of ash almost six metres thick, which suggests that they________the fire burning all winter.
| A．should keep | B．might have kept | C．should have kept | D．might keep |
---Did you meet with the famous space hero, Yang Liwei?
---_____ I had come here earlier.
| A．If only | B．Only if | C．But for | D．Despite |
. --- Steve has got the first prize in the maths contest.
--- ______ is no wonder that he looks so happy today.
| A．It | B．That | C．This | D．There |