--- I feel nervous about the coming summer.---- Me , too. Hot weather _____ makes people feel hot, ______ causes serious health problems.

It has been 4 years _____ the earthquake happened in Wenchuan

Good to see you again. It’s almost three years _______ we met last time.

Although he is really heavy,   he still runs fast.

 -- _____ classes are there in your school?   –Thirty.