As a teacher，I really feel worried to see so many students ____glasses．（ ）
A．wearingB．dressingC．putting onD．being in
Andy，with his parents，______ to Hong Kong，and they will stay there for a week．（ ）
A．have goneB．has goneC．have beenD．has been
________ do you go to the Buddy Club in your school？
Twice a month．（ ）
A．How farB．How longC．How soonD．How often
Excuse me，______ I take the magazine out of the reading room？
Sorry，you can't．Just here，please．（ ）
A．mustB．wouldC．mayD．need
It's cold outside，Sandy．You'd better _____ your coat to keep warm．（ ）
A．put upB．put outC．put onD．put away
More than two _____ trees are planted in our neighborhood every year．（ ）
A．hundredB．hundreds
C．hundreds ofD．hundred of