. He was determined not to be the first _____________it.
| A．say | B．saying | C．to say | D．says |
We all know that, _______, the situation will get worse.
| A．not if dealt carefully with | B．if not carefully dealt with |
| C．if dealt not carefully with | D．not if carefully dealt with |
The fearless pirates kept _______ on the waters off the coat of Somalia, from the Gulf of Aden to the Kenya border along the Indian Ocean.
| A．knocking on | B．knocking down |
| C．knocking about | D．knocking at |
_______ the pull of the earth, a rocket must reach a speed of 28440 km/h.
| A．In order to flee | B．So as to escape |
| C．To escape | D．So that to flee |
The city, _______ by an army of 1,500 soldiers, was difficult to take.
| A．protected | B．defended | C．attacked | D．prevented |
It was not until he told me ______ what had happened.
| A．that I knew | B．did I know |
| C．when I knew | D．I had known |