---Any advice for me?---You’d better the timetable to see when the train leaves.
It is one thing to enjoy listening to good music, but it is ____another to play it well yourself.
_______his thoughts, the scientist didn’t notice what had happened before him.
The professor could tell by the _________look in Mars's eyes that she didn’t understand a single word of his lecture.
If the sun ________ in the west tomorrow, Helen _________ Tom!
Having a trip abroad is certainly good for the old couple, but it remains_________ whether they will enjoy it.