Mr. Brown knows little Japanese，so he can't understand the ________ on the bottle of the pills.
| A．explanations | B．instructions |
| C．suggestions | D．introductions |
If he had spent more time practicing speaking English before, he _____ able to speak it much better now.
| A．will be | B．would be | C．has been | D．would have been |
The water supply has been cut off temporarily because the workers ____ one of the main pipes.
| A．had repaired | B．have repaired | C．repaired | D．are repairing |
At our factory there are a few machines similar to _______ described in this magazine.
| A．them | B．these | C．those | D．ones |
It was not until near the end of the lettershe mentioned her own plan.
| A． | that | B． | where | C． | why | D． | when |
In some languages, 100 words make up half of all wordsin daily conversations.
| A． | using | B． | to use | C． | having used | D． | used |