Snowden arrived at Sheremetyevo International airport on June 23, _____ he was prevented from leaving for six weeks after the U.S. canceled his passport.
| A．which | B．where | C．when | D．what |
－How do you usually find out about new software?
－In the magazines like Popular Electronics. That’s______computer companies usually advertise.
| A．which | B．where | C．what | D．why |
______the address, Tom sent the email to his teacher.
| A．Having checked | B．Checked | C．Being checked | D．To check |
They all wanted to stop working because they were tired, but______of them would say sl.
| A．any | B．some | C．none | D．neither |
．______Hard you may try, you can’t possibly persuade Tom to give up smoking, for he is so addicted to it.
| A．Whatever | B．However | C．Whichever | D．Whenever |
Every year, Tom remembers to have some flowers______to her mother on her birthday.
| A．send | B．sent | C．sending | D．being sent |