________ there, the southwest desert contains a remarkable variety of plants.
| A．Rarely as it rains | B．Sometimes it rains |
| C．It rarely rains | D．Although rarely rains |
—Whom would you rather have ____ with you, Mary or Jane?
—___.
| A．to go; Either | B．go; Either | C．gone; Neither | D．going; Anyone |
Allen had to call a taxi because the box was ____ to carry all the way home.
| A．much too heavy | B．too much heavy | C．heavy too much | D．too heavy much |
—Do you know the most ancient city in China—Xi’an well?
—No，this is the first time I ________ here.
| A．came | B．have come | C．am coming | D．come |
Our teacher told us that there ______ no end to learning.
| A．was | B．is | C．has | D．had |
It is said that there are millions of camels in India and _______ of them is growing.
| A．a great number | B．the number | C．a lot | D．a good many |