【单选题】【消耗次数：1】
That was so serious a matter that I had no choice but __________ the police.
①
called in
②
calling in
③
call in
④
to call in
参考答案：
复制
纠错
相关题目
【单选题】
I received his mother’ s telephone call at eleven. _____ that
he was badly hurt in an accident yesterday.
①
Then did I know
②
Only then I knew
③
Only then did I know
④
Only then knew I
【单选题】
_____the stress of examinations are over, we call all relax.
①
while
②
Even though
③
Now that
④
For
【单选题】
At midnight, he received a telephone call and was asked to meet at once.
①
mystery
②
mysterious
③
mystical
④
mythical
【单选题】
---Why didn’t John call me ? ---Oh, his cell-phone ran out of power, otherwise he______ you.
①
had called
②
would have called
③
called
④
would call
随机题目
【多选题】
气相色谱法鉴别，适宜的制剂样品为含有何种成分的制剂？
①
挥发油
②
挥发油成分
③
不挥发性成分可分解或制成挥发性衍生物
④
不挥发性成分不可分解
⑤
不挥发性成分不可分解或不能制成衍生物