She always helps her mother look after her baby sisiter even though going to school ___ most of the day.
| A．takes up |
| B．makes up |
| C．saves up |
| D．puts up |
by a policeman, the children crossed the street safely.
| A．To lead | B．Lead | C．Leading | D．Led |
snacks and drinks, but they also brought cards for entertainment when they had a picnic in the forest.
| A．Not only they brought | B．Not only did they bring |
| C．Not only brought they | D．Not only they did bring |
Jim went to answer the phone. , Harry started to prepare lunch.
| A．However | B．Therefore | C．Besides | D．Meanwhile |
It took them time to finish the challenging task.
| A．a number of | B．a lot | C．a great deal of | D．a good many |
He told us whether a meeting was still under discussion.
| A．to have | B．having | C．have | D．had |