A Colorado woman said that her iPhone 4 ______ fire while charging overnight.
#102194
A
had caught
B
has caught fire
C
was catching
D
caught
推荐题目
Today’s temperature_______ between ten and thirty degrees.
#102750
A
change
B
ranges
C
is changed
D
is ranged
 When Nancy was at college, she ____ three foreign languages, but I am surprised to find that  she ____ all except a few words of each.
#102276
A
spoke; had forgotten
B
had spoken; had forgotten
C
spoke; has forgotten
D
had spoken; has forgotten
In addition to the farming they ______ since the 1990s, the Smiths have started a small business.
#100365
A
have done
B
had been done
C
were doing
D
have been doing