I guess we ‘ve already talked about this before but I’ll ask you again just _____.
| A．by nature | B．in return | C．in case | D．by chance |
_______ is no need to worry if you have never skied before.
| A．It | B．That | C．There | D．This |
Life in the oceans _______ from the tiniest plankton all the way up to giants like sharks and whales.
| A．changes | B．ranges | C．remains | D．develops |
The motto for the scientific park makes _______ clear that science and business must work together to build the future.
| A．that | B．it | C．this | D．one |
This magazine is very _______ with young people, who like its content and style.
| A．familiar | B．popular | C．similar | D．particular |
The play had already been on for quite some time when we _______ at the New Theatre.
| A．have arrived | B．arrived | C．had arrived | D．arrive |