. The trouble is _____ we are short of hands.
| A．what | B．that | C．how | D．why |
My friend showed me round the town，__________wasvery kind of him.
| A．which | B．that | C．where | D．it |
Between the two parts of the con-cert is an interval，__________ the audience can buy ice-cream.
| A．when | B．where | C．that | D．which |
Mary was much kinder to Jack than she was to the others，__________，ofcourse, made all the others upset.
| A．who | B．which | C．what | D．that |
As a child, Jack studied in a villageschool，__________is named afterhisgrandfather.
| A．which | B．where | C．what | D．that |
To my parents, what __________ is the happiness oftheir children.
| A．assures | B．influences | C．matters | D．interests |