The largest city in Canada is ______.

单项选择题—Guess what, we've got our visas for a short-term visit to the UK this summer. —How nice! You（）a different culture then.

A. will be experiencing
B. have experienced
C. have been experiencing
D. will have experienced

单项选择题—How about your trip to Hainan — It couldn't have been ______. Sometimes I went swimming in the sea; sometimes I lay on the sand.

单项选择题—______your step ,Jim, or you might fall into the water. —Oh,dear! Look where I am going.

单项选择题When I talked with my grandma on the phone, she sounded weak, but by the time we ______ up, her voice had been full of life.

单项选择题Sam（）some knowledge of the computer just by watching others working on it.

A. brought up
B. looked up
C. picked up
D. set up

单项选择题Does ______ matter if he can't finish the job on time

单项选择题I found her nice and honest______I met her.

单项选择题—Do you know that Jack（）a postman for about six years —Yes, I see.

A. has become
B. has turned
C. has changed
D. has been

单项选择题—They all agree______George. Has the project been passed —Who______George can make the final decision

单项选择题It is usually warm in my hometown in March,but it______be rather cold sometimes.