Traffic conditions in Beijing ________ for decades. At first people only complained about jams during rush hours，but today every hour is rush hour.
#101468
A
is worsening
B
have worsened
C
have been worsening
D
worsened
推荐题目
—Did you know any French before you arrived in Washington? —Never ____ it, actually.
#104212
A
had I learned
B
have I learned
C
I learned
D
was I learning
---Have you seen my e-mail about our TESL, project?---Yes. Luckily, I checked my e-mails yesterday. Normally, I my e-mail-box for days.
#100614
A
haven’t opened
B
didn’t open
C
hadn’t opened
D
don’t open
---- If he_____ , he ______ that food. ---- Luckily he was sent to the hospital immediately.
#102860
A
was warned; would not take
B
had been warned; would not have taken
C
would be warned; had not taken
D
would have been warned; had not taken
.— Mr White didn't come last night, did he? — No. We _____for him . A whole night was wasted.
#101475
A
had waited
B
have been waiting
C
were waiting
D
had been waiting
The number of foreign students attending Chinese universities rising steadily since1990.
#99649
A
is
B
are
C
has been
D
have been