—Why not talk with your parents about your willingness to attend Peking University Summer Camp?
—I tried __________to get them to listen to me.
| A．in time | B．in vain | C．in need | D．in case |
.
. It is a good city for cycling because it is flat and ________is convenient for bikes.
| A．however | B．what’s more | C．therefore | D．besides |
.
He made the choice to give all his money away, ______, he said, brought him happiness.
| A．it | B．that | C．which | D．this |
.
This is the best restaurant in our town. I’m afraid you can’t find _______ here.
| A．a better one | B．the better one | C．the best one | D．any best one |
.
Can you see the tree _____ we tied our boat last time?
| A．that | B．in which | C．on which | D．to which |
.
---- Ricky, why hasn’t Billy been with us these days?
---- Oh, he is _________for next month’s 400m race.
| A．standing out | B．taking up | C．backing out | D．working out |