Great as Newton was, many of his ideas_____today and are being modified by the work of scientists of our time.
#104460
A
are to challenge
B
have challenged
C
are challenging
D
have been challenged
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I’m sorry, but I didn’t mean to keep you waiting here for a long time. Can you______ me?
#99308
A
forgive
B
satisfy
C
apologize
D
gain
--- When shall we leave? --- As soon as I what I .
#103059
A
will finish; do
B
have finished, am doing
C
finish, will do
D
finish, do
— Did you have a good time last night?—Yes, I did. It was a long time since I _____ myself.
#99953
A
haven’t enjoyed
B
didn’t enjoy
C
enjoy
D
had enjoyed
I suppose by the time I come back next year, all these old houses south of the Baoshehe River ________ down.
#102354
A
will have been pulled
B
will be pulling
C
will have pulled
D
will be pulled
Gary Locke , a Chinese-American, once______ as the governor of Washington for 8 years and now is U.S. Commerce Secretary．
#102093
A
had worked
B
worked
C
is working
D
has been working