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______ well, you need to have a good sense of balance.

A．Danced           B．To dance          C．Dance            D．Dancing

---Have you seen Jane this week?

---No, but I ________ her call on my way to work this morning.

A．received          B．have received      C．had received       D．was receiving

With the rise of modern communication tools, handwritten letters ______ by emails. 

A．will replace        B．have replaced      C．are replaced       D．are being replaced

Cherry was afraid she wouldn’t fit in at her new school, ______ she made friends quickly.

A．for              B．so               C．and              D．but

The man put out the cigarette when _______ that smoking was not allowed on the train.

A．reminding         B．reminded         C．to remind         D．being reminded

I’m not satisfied with my study, so recently I ______ a talk with my teacher.

A．have             B．had              C．am having         D．would have

_______ we have planned ahead might change when we put it into practice.

A．Whatever         B．Whenever         C．Whoever          D．However

--- Alice looks sad. Did you tell her about her brother’s accident?

--- Sorry, I ________ her just before her final exams.

A．can’t tell                             B．mustn’t have told

C．needn’t tell                          D．shouldn’t have told

Brian talks to me like a child, _______ really annoys me.  

A．who             B．whom            C．which            D．where

 ________ along the Silk Road led to world-wide business 2,000 years ago.

A．Trading           B．To trade           C．Traded            D．Having traded