Tibet receives foreign visitors from January to April each year．（ ）
A．thousand ofB．thousands of
C．several thousands
Football fans are often called the "12th man" because of their influence ______a team.
A．toB．fromC．onD．at
—It is important for us to wear seat belts while driving cars.
—________．（ ）
A．That's a good ideaB．That's all right
C．I can't agree moreD．Take it easy
—A celebration for the 100th anniversary of the founding of the CPC（中国共产党） will be held，and I'm wondering ________．
—Let's have a discussion about it this afternoon.（ ）
A．how will we get there
B．which clubs will take part
C．what we could do for it
D．whether can we do something for it
—Good news!The Underground Line 1 in Nantong ________ to come into service soon.
—That's great!Transport will become much easier for us.（ ）
A．will be expectedB．is expected
C．expectsD．is expecting
The community worker is patient enough ________to the old how to use Health Code（码）.（ ）
A．explainB．explainsC．to explainD．explaining