【单选题】
A computer can only do____ you have instructed it to do.
【单选题】
The thing that ____ is not whether you fail or not, but whether you try or not.
【单选题】
____ she was invited to the hall made her very happy.
【单选题】
It ____ to the hospital yesterday, but I forgot all about it.
【单选题】
He was frightened by ____of lightning.
【单选题】
Mr. John was busy, ____ he could not come.
【单选题】
He is so shy that he ____ speaks in the public.
【单选题】
Thanks to Mr. Wang, he kept____ us to remember the important things.?
【单选题】
They will inform him ____ any progress they make in the experiment.