The secretary worked late into the night, ______ a long speech for the president.
| A．to prepare | B．preparing | C．prepared | D．was preparing |
There is no doubt ______ he did is good for us.
| A．that what | B．what that | C．that | D．what |
Would it be ______ for you to pick me up at four o’clock and take me to the airport?
| A．free | B．useful | C．handy | D．convenient |
When I opened the door I found my son completely ______ a game.
| A．absorbing in | B．absorbed to | C．absorbed in | D．absorbing to |
______ it rains tomorrow, they’ll go out for an outing.
| A．As if | B．As though | C．Even if | D．Even so |
Our car ______ on our way to school, so we had to walk there.
| A．broke up | B．broke off | C．broke down | D．broke away |