It is usually not quite cold in this area in March, but sometimes temperature ____be very low.
| A．should | B．can | C．must | D．shall |
He transplanted the little tree to the garden _____ it was the best time for it.
| A．where | B．when | C．that | D．until |
-----“What did he ask you?”
-----“_____ I would be late.”
| A．That | B．When | C．Where | D．Whether |
He had a lot of friends, but none of _____ could lend him any money.
| A．whom | B．them | C．which | D．who |
_____ when one loses freedom does one know its value.
| A．Just | B．Only | C．Even | D．Ever |
He had a lot of friends, none of _____ could lend him any money.
| A．whom | B．them | C．which | D．who |