题目内容

______ you understand the rule, you can do it well.
A．ForB．AsC．OnceD．While
C
once连词，引导状语从句，"一旦"。
练习册系列答案
相关题目

—Have you been to New Zealand?
—No. I’d like to, ____________
A．tooB．thoughC．yetD．either
It looks ____ it's going tosnow.                   
A．thatB．asC．as ifD．like that
“You can’t have your football back ____ you promise not to kick it at my dog again,” the woman said firmly.
A．untilB．whenC．sinceD．because
The sun is bigger than the moon, _______ we all know it.
A．asB．whichC．andD．that
They kept trying _________ they must have known it was hopeless.
A．ifB．becauseC．whenD．where
Children’s brains can’t develop properly_______ they lack protein.
A．whenB．sinceC．becauseD．unless
—What should we pay more attention to if we go north in winter, Mum?
—Nothing much. Take warm clothes________ the weather is cold.
A．as long asB．now thatC．ifD．in case
She thought I was talking about her daughter, ________, in fact, I was talking about my daughter.
A．whomB．whereC．whichD．while

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网