Sam managed to keep in________contact with his family while he was working in New Zealand.
| A．pleasant | B．confident | C．constant | D．different |
No one could _________ the failure of the experiment as everything went smoothly at first.
| A．give an account for | B．account for | C．take account of | D．take into account |
It was _____ he came back from Africa that year _________ he met the girl he would like to marry.
| A．when; then | B．not; until | C．not until; that | D．only; when |
He determined to teach in a western province, though he _______in the city for a better life.
| A．could stay | B．would stay | C．could have stayed | D．had stayed |
—Do you think it wise for Chinese parents to try to do everything for their children?
—No, that’s they are mistaken.
| A．where | B．when | C．what | D．how |
The role change from husband to father, although difficult, doesn’t seem so great as from wife to mother.
| A．one | B．that | C．this | D．those |