2 . —With the country’s pension fund gap becoming wider than ever, retirement age should be postponed immediately.
— Easier said than done _______ we take all factors into account, we shall be faced with some other social problems.

A．Unless

B．Even

C．When

D．Once

3 . —Is the new job a real challenge for him?
—Well, ______ difficulties he meets, I believe he will never lose heart.

A．whenever

B．however

C．whichever

D．whatever

4 .        , we must believe in ourselves and be confident that efforts must pay off one day.

A．whatever difficult is life

B．whatever is life difficult

C．However difficult life is

D．However difficult is life

6 . Do you remember the day ________ we first met and spent the whole afternoon together?

A．when

B．which

C．that

D．how

8 . In one of the letters, Father Christmas complained about _________ he could not stop his helpers playing games with the toys instead of wrapping them up.

A．which

B．who

C．what

D．how

9 . The monarch’s population ________ by as much as 90 per cent in the last few years.

A．crashed

B．had crashed

C．has crashed

D．have crashed

10 . I still cherish the days ________ I spent with those farmers in the countryside in those years, ________ has a lasting effect on my entire life.

A．that, which

B．when, which

C．which, what

D．when, that