.
The second half of his voyage was__________dangerous part, during which he sailed round the Cape Horn.
| A．more | B．most | C．the most | D．the more |
---How's your tour around the North Lake? Is it beautiful?
---Itbe, but it is now heavily polluted.
| A． | will | B． | would | C． | should | D． | must |
I won’t call you, ________ something unexpected happens.
| A．unless | B．whether | C．because | D．while |
---The last one __________________ pays the meal.
---Agreed!
| A．arrived | B．arrives | C．to arrive | D．arriving |
A---It's a long time since I saw my sister.
---her this weekend?
| A． | Why not visit | B． | why not to visit |
| C． | Why not visiting | D． | Why don't visit |
The manager suggested an earlier date ____________ the meeting.
| A．on | B．for | C．about | D．with |