There are five pairs _______, but I'm at a loss which to buy.
| A．to be chosen | B．to choose from | C．tochoose | D．for choosing |
The two boys share the same hobbies but they are quite different _______ personality.
| A．in | B．with | C．for | D．on |
It won’t be a very long time _________ he is in business for himself.
| A．until | B．when | C．before | D．that |
No regular advertiser dare produce anything that fails to stick to the _______ of his advertisement.
| A．situation | B．level | C．text | D．promise |
In face of failure, it’s the most important to _______ a positive state of mind.
| A．pick up | B．make up | C．keep up | D．put up |
— Should I talk in English or French?
— Do as you _________ . We understand both.
| A．think | B．please | C．care | D．feel |