Clean water and fresh air are essential for our daily life, _______ we can’t live.
| A．by which | B．without which | C．that | D．on which |
Helen had to shout ________ above the noise.
| A．making herself hear | B．to make herself hear |
| C．making herself heard | D．to make herself heard |
Kathy ________ a lot of Spanish by playing with the native boys and girls.
| A．picked up | B．took up | C．made up | D．turned up |
---How far apart do they live?
---________ I know ,they live in the same neighborhood.
| A．As long as | B．As far as | C．As well as | D．As often as |
I can’t find Mr. Smith .Where did you meet him this morning? It was in the hotel ___ he stayed.
A. that B which C. the one D. where
____ that silver is not widely used as a conductor?
| A．Why is | B．Is it why | C．Why is it | D．Why is that |