A recent study has ________an unexpected conclusion that the African elephant should be divided into two different species.
| A．kept up with | B．made up with |
| C．caught up with | D．come up with |
You should be more careful, _______ you might meet with some accident.
| A．meanwhile | B．otherwise | C．although | D．however |
One _______ fact is _______ Crystal always keeps a toothbrush in his pocket for good luck when he is the host of the Academy Awards.
| A．little-knowing ; 不填 | B．well-known ; which |
| C．little-known ; what | D．little-known ; that |
He hurried to the booking office only ＿＿＿ that all the tickets had been sold out.
| A．to tell | B．to be told | C．told | D．telling |
It was ＿＿＿ he came back from school today ＿＿＿ he found his new book missing.
| A．when; then |
B．not; until |
C．not until; that |
D．only; when |
--- I think I’m coming down with a bad cold. --- ＿＿＿ .
| A．Oh, don’t say that again. | B．Then you’d better see a doctor. |
| C．Well, I suggest you have a rest. | D．But you should go up a bit. |