No decision______about any future appointment until all the candidates have been interviewed.

单项选择题Tim is in good shape physically（）he doesn't get much exercise.

A. if
B. even though
C. unless
D. as long as

单项选择题I tried phoning her office, but I couldn't ______.

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—We've spent too much money recently. —Well, it isn't surprising. Our friends and relatives（）around all the time.

A. are coming
B. had come
C. were coming
D. have been coming

单项选择题（）from the top of the tower, the south foot of the mountain is a sea of trees.

A. Seen
B. Seeing
C. Having seen
D. To see