He was busy preparing a speech , only _______ once in a while to rise from the table for a tea .
| A．stopping | B．to stop | C．to have stopped | D．having stopped |
You are not stupid________you are slow in study.You shouldn’t give up your studies.
| A．even though |
| B．when |
| C．while |
| D．whether |
________ is now no ________ that global warming is a security threat to us all.
| A．There；doubt |
| B．There；need |
| C．It；doubt |
| D．It；need |
Local resident groups have________in opposition to the plan.
| A．connected |
| B．united |
| C．joined |
| D．combined |
There are many old customs and laws that ought to be ________.
| A．abolished |
| B．banned |
| C．refused |
| D．rejected |
There is no doubt that Internet shopping will________as long as customers can make sure of its safety and quality.
| A．take in |
| B．take over |
| C．take out |
| D．take off |