I am sorry that I can not meet you at the railway station. I _______ Beijing by the time you come back from abroad.
| A.have left | B.will have left |
| C.will leave | D. am leaving |
The CDs are on sale!Buy one and you get ______ completely free.
| A.other | B.others | C.one | D.ones |
Mr. Baker thinks his own inconvenience and _________ of his fellow colleagues are the only thing that the government should deal with.
| A.whoever | B.someone | C.that | D.any |
My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive . 
| A.as | B.so | C.too | D.very |
He didn’t make ________ clear when and where the meeting would be held.
| A.this | B.that | C.it | D.these |
Being a parent is not always easy, and being the parent of a child with special needs often carries with ___ extra stress.
| A.it | B.them | C.one | D.him |