The new invention may __________a lot of changes in our daily life.

He always brings me a pretty gift ____ he comes to visit me.

Don’t worry, sir. I’m sure I can run _________ to catch up with them.

Ms．Zero was preparing food．Under one of the apple trees in thegarden ______, smoking and looking at the harvest with a smile． A．stood her husband B．did her husband stand C．her husband stood D．her husband standing

______ difficult it is, he is determined to ______ the experiment