The old woman walks ______ dog after ______ supper every day.
| A．a; the | B．/; / | C．the; the | D．the; / |
I want to buy a piano of high quality, _____ I can practise on every afternoon.
| A．that | B．so that | C．what | D．one |
Is this watch _____ you wish to have _____?
| A．the one; it repaired | B．that; repaired it |
| C．the one; repaired | D．which; repaired it |
There are two small rooms in the house, _____ serves as a kitchen
| A．the smaller of which | B．the smallest of which |
| C．the smaller of them | D．the smaller one |
This is the very knife _____ I used to cut apples yesterday.
| A．that | B．by which | C．which | D．with which |
---- Is it high time that we _____ on the school building?
---- Yes, it _____.
| A．do some repairs; is | B．do some repair; is |
| C．did some repairs; is | D．did some repair; was |