单项选择题
We tried to settle the problem with them as soon as possible, but they seemed to ______ sincerity.
单项选择题 Why don't you take ______ to read on the train Can you lend me ______ interesting
单项选择题 That ______ the case, we have to make some changes in our plan.
单项选择题 This detective story might not be ______ interesting to keep the child awake.
