Start out right away, _____you’ll miss the first train.
| A．and | B．but | C．or | D．while |
—I wonder ______ you’ll water this kind of flower.
—Every other day.
| A．how often | B．how long | C．how soon | D．how much |
. She brought with her three friends, none of ______ I had ever met before.
| A．them | B．who | C．whom | D．these |
. — Why does the Lake smell terrible?
—Because large quantities of water______.
| A．has polluted | B．have been polluted |
| C．has been polluted | D．is being polluted |
Peter’s jacket looked just the same as Jack’s, but it cost ______ his.
| A．as much twice as | B．as twice much as |
| C．much as twice as | D．twice as much as |
. Everybody was touched ______words after they heard her moving story.
| A．beyond | B．within | C．of | D．in |