• wait/expect
• who/whom
• ago/before
• any/some
• asleep/sleepy
• bring/take/carry
• hope/wish
• everyday/every day
• fit/suit
• hear/listen to
• speak/say/talk/tell
• spend/cost
• travel/trip/voyage
• sometime/sometimes/some time/some times
• worth/worthy
• occur/happen/take place
• can/may/might
• maybe/may be
• during/when/while
• prefer/rather
• think
• time
• hurt
• 动词+动名词/动词+不定式
• have been to/have gone to
• shameful/ashamed