is known to us all, the earth is round.
That is to say is known to us all is that the earth is round .
| A．As, what | B．As, as | C．what ,as | D．What ,what |
The old town has narrow streets and small houses ___ are built close to each other.
| A．they |
| B．where |
| C．what |
| D．that |
Ted came for the weekend wearing only some shorts and a T-shirt, ___ is a stupid thing to do in such weather.
| A．this |
| B．that |
| C．what |
| D．which |
The players ___ from the whole country are expected to bring us honor in this summer game.
| A．selecting |
| B．to select |
| C．selected |
| D．having selected |
Even the best writers sometimes find themselves ___ for words.
| A．lose |
| B．lost |
| C．to lose |
| D．having lost |
The old couple often take a walk after supper in the park with their pet dog ___.
| A．to follow |
| B．following |
| C．followed |
| D．follows |