单项选择题
A.check in B.check through C.check out D.check on
On hearing the bad news, she sprang up （）A.for a startB...
单项选择题On hearing the bad news, she sprang up （）
A.for a start B.with a start C.at the start D.from the start
At first, the speaker was referring to the problem of p...
单项选择题At first, the speaker was referring to the problem of pollution inthe country, but halfway in her speech, she suddenly（）to another subject.
A.committed B.switched C.favored D.transmitted
Your advice would be（）valuable to him, who is at presen...
单项选择题Your advice would be（）valuable to him, who is at present at his wits' end.
A.exceedingly B.excessively C.extensively D.exclusively
