So far, the number of people using 5 G mobile phones __________ a lot.( )
is increasing
are increasing
has increased
have increased
________ waste of time it is to spend too much time on computer games!
China Dream is a great way to gather people together and ___ the fast development of our country.
---Who’s that at the door, Tony?---________ is the postman, I think.
The plan they are talking about _________ improving greatly.
—I’m sorry, sir. I’ve made lots of mistakes in the monthly exam.— Never mind. ___________, the exam is a bit difficult.