The country has already sent up three unmanned spacecraft,the most recent ________ at the end of last March.
A.has been launched | B.having been launched |
C.being launched | D.to be launched |
------Flight 302 to London_______ until 7:30 tomorrow morning.
-----No wonder I hear so many complaints from the passengers.
A.has been delayed | B.delay | C.delayed | D.will be delayed |
When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.
A.went | B.had gone | C.has gone | D.was going |
----How have you been doing recently?
----________.Nothing really goes wrong.
A.Good luck! | B.I’ll keep my fingers crossed | C.Can’t complain | D.So long |
A beach house caught fire last night, ______seven students living in it.
A.to kill | B.killing | C.having killed | D.killed |
The computer system____suddently while he was searching for information on the Internet.
A.broke down | B.broke out | C.broke up | D.broke in |