____________a shortage of steel,industrial output has increased by five percent.
Will you help me out with this mathematical problem? I ____ it.
The 2014 FIFA World Cup will be held in Brazil on June 13th, 2014, and 32 football teams_____ so far.
---Did Tom come back late last night?---No. It was not yet 8 o’clock ____ he arrived home.
Our school has about 100 computers, but only sixty percent ____ used regularly.
Although Rose is very busy, she still ____ a lot of time to her students in her spare time.