His friends ignored his advice, ______ they knew it to be helpful.
| A．as if | B．since | C．even if | D．so that |
“Where is David?” “He is upstairs ______ ready to go out.”
| A．to get | B．getting | C．to be getting | D．having got |
To test eggs, _______ them in a bowl of water: if they float they’re bad, if they sink they’re good.
| A．put | B．putting | C．to put | D．to be putting |
Mr Reed made up his mind to devote all he had to _______ some schools for poor children.
| A．set up | B．setting up | C．have set up | D．having set up |
It is said that in Australia there is more land than the government knows _______.
| A．it what to do with | B．what to do it with |
| C．what to do with it | D．to do what with it |
Robert is said _______ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to study | C．to be studying | D．to have been studying |