18．_________a US visitor visa twice, the old couple finally gave up their hope of going to America to experience Thanksgiving Day.

       A．Having been refused              B．Being refused      C．Having refused          D．To be refused

When we heard the funny story, we ___.

A. were surprised   B. were worried about   C. burst into laughter  D. couldn’t help laughing

The house stood _____ there had been a rock.

A. which            B. at which            C. when               D. where

You'll miss the train ______ you hurry up.

A. unless          B. as                  C. if                    D. until

 I’ll start early , _______ it is dark or light .

A. however          C. whether          C. if             D. though

I’ll leave him a note _______ he’ll know where we are.

A. so that             B. so as              C. in order    D. for

 It was _______ that they planned to have a picnic.

A. such fine weather                       B. so fine a weather

C. such a fine weather as                  D. such a fine weather

Recently I bought an ancient Chinese vase, _____ was very reasonable.

A. which price　                              B. the price of which

 C. its price　                               D. the price of whose

The owner of the cinema needed to make a lot of improvements and employ more people to keep it running, ______ meant spending tents of thousands of pounds.

A. who               B. that                C as               D. which

The pen, _______ I had been writing for ten years, was broken.

A. with which     B. with that           C. as                D. with it