The country has already sent up three unmanned spacecrafts, the most recent ________at the end of last March.
A.has been launched | B.having been launched | C.being launched | D.to be launched |
He raised his voice, ______ we still couldn’t hear anything.
A.so | B.or | C.but | D.as |
I think you should complain — ____,of course, you are happy with the way things are.
A.if | B.unless | C.as | D.because |
-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 |