These flowers should not be watered too ______, once _____.
| A．long; every other day | B．often; every fourth day |
| C．soon; every two days | D．frequently; each five days |
______ twice a year, whether it is a car, a bus or a truck, is the rule that every driver must obey in this city.
| A．Examing | B．Examined | C．Being examined | D．Having been examined |
Children should be instructed to put things _____ they belong in their early childhood.
| A．where | B．in which | C．to which | D．what |
Without Sir Tim, the father of www, keeping up with the latest ______ so convenient.
| A．would be | B．wouldn’t be | C．would have been | D．wouldn’t have been |
Out of the crowded bus _______, who was dressed in a black suit and waved to a woman.
| A．a tall man in his thirties stepped | B．stepped a tall man in his thirties |
| C．did a tall man in his thirties step | D．did a tall man step in his thirties |
On hearing the news, he ______ the dictionary lying open on the desk, rushed out and ______ into the distance.
| A．leaving; disappearing | B．left; disappeared |
| C．left; disappearing | D．leaving; disappeared |