—Did you listen to the report last Friday?—Yes, it was about the shortage of immigrant workers. That was the first time I ________ about the subject.
They ________ for two years and haven't been in touch with each other for a long time.
Today,we will begin______ we stopped yesterday so that no point will be left out.
All the arrangements are now in ________ place for ________ graduation ceremony that will take place tomorrow.
Nowadays almost everyone prefers to use a smart mobile phone ______ functions are more practical.
Today there are more airplanes ______ more people than ever before in the skies.