We must find out the professor is coming， so we can book a room for him．（ ）
A．howB．whyC．whenD．where
Computers are very useful．They can help us get much ________ on the Internet．（ ）
A．gamesB．information
C．courageD．messages
What's the meaning of"One Belt and One Road"？
Let me ________ the words in the new dictionary．（ ）
A．look atB．look forC．look afterD．look up
The volunteers ________ a lot of help to the old and the young since 2010．（ ）
A．offeredB．have offered
C．are offeringD．will offer
Of all the drinks，tea is ________ in the world．It has a history of about 5，000 years．（ ）
A．oldB．olderC．the oldestD．very old
For our safety，we must ________ the traffic rules on the way to school．（ ）
A．followB．changeC．makeD．break