In their efforts to persuade us to buy that product, shopkeepers have made a close study of human nature and have __________ all our little weaknesses.
| A．divided |
| B．arranged |
| C．classified |
| D．Separated |
There are no children ___ love their parents.
| A．that do not | B．who does not | C．that | D．who |
Children should not have more money ___ needed.
| A．which | B．that | C．than | D．as |
---Mary hasn't written to us for a long time.---What do you suppose __ to her?
| A．happened | B．to happen | C．was happened | D．having happened |
| A．are; were | B．is; were | C．are; was | D．is; was |
| A．the; the | B．a; a | C．a; the | D．the; a |