50. Teachers should be _____ with their students but should not be _____ on them.
| A．hard; strict | B．strict; hard | C．hardly; strictly | D．strictly; hardly |
In some restaurants, food and service are worse than ______ used to be.
| A．they | B．it | C．them | D．that |
She is doing her homework.I'll do_______.
| A．such | B．so | C．the same | D．the same as |
Mary learned Chinese for about two years, _______is, from 1993 to 1995.
| A．this | B．that | C．it | D．he |
I hate ______ when people talk with their mouths full.
| A．it | B．that | C．these | D．them |
Few pleasures can equal _____ of a cool drink on a hot day.
| A．some | B．any | C．that | D．those |