A warm thought suddenly came to me _______ I might buy some flowers for my friend's mother’s 60th birthday.
| A．if | B．when | C．that | D．which |
—You could always put the decision off a little bit longer.
—_____ If I leave it much longer I might miss my chance.
| A．That’s reasonable advice. | B．Isn’t it a good idea? |
| C．Do you think so? | D．I can’t agree more. |
To learn to swim well, ___________.
| A．one needs much practice | B．much practice is needed |
| C．much practice needs | D．one is needed much practice |
The next thing he saw was smoke ______ from behind the house.
| A．rose | B．rising | C．to rise | D．risen |
They began to think about what use could be ______ such materials.
| A．made up | B．made from | C．made out | D．made of |
Tom ______ close the window when his attention was caught by a bird.
| A．was to | B．went | C．was about to | D．would |