Having a trip abroad is certainly good for the old couple, but it remains _________ whether they will enjoy it．
to see
to be seen
seeing
seen
Dr．Smith, I would like to ask you some advice for my future career．When are you _________, please?
available
present
handy
convenient
If you want to make more friends with foreigners, there are lots of websites _________ to you．
effective
valuable
affordable
I was going to attend Mary’s wedding party, but I couldn’t make it, for my car _________ on the way．
broke down
put down
broke up
put up
It’s Mary’s own fault if she feels _________ at the party; she makes no effort to be friendly to people．
left out
kept out
let out
left off
The records of Twins are _________ being bought, for their songs can bring us energy．
worthy
worth
worthwhile
worthy of
In the meantime, the question facing business is whether the research is _________ the costs．
worth of
They did not find _________ to prepare for the worst conditions they might meet．
it worthwhile
it worth
it worthy
Violence on TV may turn out to be a strong _________ on some young people．
impression
expression
influence
influential
I’d like to see you whenever it’s _________ for you．
fit
suited
efficient