If you are _______ about Australian cities, just read the book written by Dr. Johnson.
| A．worried | B．anxious | C．upset | D．curious |
Tough ______ _money, his parents managed to to send him to a key university.
| A．lacked | B．lacking of | C．lacking | D．lacked in |
She ____________ the path as the trees around her became thicker.
| A．lost sight of | B．caught sight of | C．lost sight | D．caught sight |
Once ________ more attention, the little trees could have grown better.
| A．given | B．to give | C．giving | D．having given |
After ten hours’ operation, the doctors managed to _____the one-year-old twins at the head.
| A．isolate | B．separate | C．divide | D．remove |
It remains______ whether the medicine has side effect.
| A．seeing | B．to see | C．seen | D．to be seen |