The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
I’m not sure whether John ______ his parents has arrived.
Today some people get ______ because they eat too much fat and sugar and don’t take enough ______.
It must be very ______ to watch a close game between the two basketball teams.
He spoke ______ quickly ______ I couldn’t understand a word he was saying.
The boy ______ fifty yuan in repairing the watch yesterday.