By the 1920s, Howard Carter ____ an explorer.
#99036
A
has become
B
had become
C
became
D
would become
推荐题目
It was required that the tall building _______ at present because it is still new. 
#102424
A
not pulled down
B
was not pulled down
C
not being pulled down
D
not be pulled down
My money________,so I must go to the bank to draw some of my savings out before I've none in hand.
#101050
A
is being run out
B
has been run out
C
is running out
D
has run out
—I don’t believe we _______ before.  —Well, I saw you once at a party, but we ______ introduced.
#102406
A
have met; weren’t
B
met; weren’t
C
have met; haven’t been
D
met; haven’t been
A bridge _____________ in the distance and its construction _____________ in a year.
#102243
A
is being built; will be finished
B
is built; has been finished
C
has been built; is being finished
D
is being built; is finished