Can I join their club– I am afraid you will be refused __________you’ve passed all their tests.

dy of natural history is not something to be left to biologists In fact,their capacity _________ the time they can spend away from their offices isvery limited

They develop their skills_________ they can do things better and better.

The World Wide Web is sometimes jokingly called the World Wide Wait because it ________be very slow sometimes.[ ]

ssor Smith, can I meet you at 10 o’clocktomorrow morning—Oh, I’m sorry. I alecture at Hunan Normal University.