To prepare for the Olympic Games in summer, London ____ its largest ever exercise to test the response of emergency services.
#102047
A
planned
B
is planning
C
had planned
D
plans
推荐题目
He ________ in America for 3 years when he was young, so he can speak fluent English.
#100092
A
has lived
B
had lived
C
was living
D
lived
---Remember the first time we met, Mary? ---Sure．You ______ in the supermarket．
#103848
A
had shopped
B
have shopped
C
were shopping
D
shopped
Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words.
#104738
A
has just left
B
had just left
C
just left
D
was just leaving
-----Did you have a hard time traveling back home?-----Yes, it ______ for four days when I arrived in Guiyang and all the roads______ covered with ice.
#100845
A
snowed, were
B
was snowing, had been
C
had been snowing, had been
D
had snowed, were
---- Why does the river smell terrible? ---- Because large quantities of water______．
#99913
A
have been polluted
B
has polluted
C
has been polluted
D
have polluted