The infrastructure of a country is makes everything run smoothly， including things like transport， irrigation， electricity， postal service， telephones and schools.
A.that B.what C.which D.as
We should be able to do the job for you quickly， you give us all the necessary information.
A.in case B.provided that C.or else D.as if
Someone is ringing the doorbell. Go and see .
A. who it is B.who is it C.who is he D.who he is
It is said that the student seriously ill for two months last semester.
A.was B.is C.had been D.has been
From where I stand， the key to the test is to practise English every day.
A.passing； speaking B.passing； to speak
C.pass； speaking D.pass； to speak
The small victories in the fight against poverty and hunger have helped many people who are in trouble allowing them to maintain dignity.
A.before B.after C.for D.while
