The Communist Party of China will have its 100th birthday ______ July 1,2021.
A.inB.onC.forD.at
We will visit the history Museum if it _______ tomorrow.( )
A.won't rainB.doesn't rain
C.wasn't raining
The telephone ______ by Alexander Graham Bell in 1876.( )
A.was inventedB.is invented
C.invented
Marcus is our foreign teacher.He _______ in our school for two years.( )
A.wasB.will beC.has been
Look!The man _____ be Mr.Black.He's always standing there at this time every day.( )
A.mustB.can'tC.mustn't
Going hiking with a group of people makes me _________.( )
A.relaxingB.to relaxC.relax