—I phoned you at 9 this morning but got no answer.—I am sorry. I _____ the bell. I _____ in the garden.
#101559
A
didn’t have heard, must have been
B
didn’t have heard, must be
C
didn’t hear, must have been
D
didn’t hear, must be
推荐题目
By the time Jack returned home from England, his son __________from college.
#101958
A
graduated
B
has graduated
C
had been graduating
D
had graduated
----- I’m going to the States. ----- How long ______ you ______ in the States?
#104148
A
are; stayed
B
are; staying
C
have; stayed
D
did; stay
In recent years, great changes have taken place in the city of Wenzhou. As we can see, many streets and roads_______.
#101959
A
had been built and rebuilt
B
has been built and rebuilt
C
have been built and rebuilt
D
are being built and rebuilt
Laughter, along with an active sense of humor, ______ protect you against a heart attack, according to a recent study.
#100012
A
have helped
B
helped
C
help
D
helps