The biggest problem for most plants,which_______just get up and run away when threatened,is that animals like to eat them.
| A．shan’t | B．can’t |
| C．needn’t | D．mustn’t |
---When shall I call, in the morning or afternoon?
----___. I’ll be in all day.
| A．Any | B．None | C．Neither | D．Either |
nearly all our money, we couldn't afford to stay at a hotel.
| A． | Having spent | B． | To spent | C． | Spent | D． | To have spent |
Life is unpredictable; even the poorestbecome the richest.
| A． | shall | B． | must | C． | need | D． | might |
I don’t believe what you said, but if you can prove it, you may be able to _________-me.
| A．convince | B． inform | C．guarantee | D．refuse |
Among the many dangers_________-- sailors have to face, probably the greatest of all is fog.
| A．which | B．what | C．where | D．when |