— What do you think of the first lecture by Ms Li?
—Well, it’s quite _______ and all of us are quite ______ at it.
| A．amazed, amazing | B．amazed, amazed |
| C．amazing ,amazed | D．amazing, amazing |
_____ these experiments were successfully completed would we think of
going into humans.
| A．If only | B．So that | C．Only if | D．Even if |
According to the rules and regulations, all payments _____ be made in cash in the shopping center.
| A．shall | B．can | C．must | D．should |
A huge amount of environmental damage has been _____ by the destruction of the rainforests.
| A．brought up | B．brought about | C．brought down | D．brought out |
_____ her leg the last time, Brenda decided not to go on the school skiing trip this year.
| A．Breaking | B．Broken | C．To break | D．Having broken |
Doctors strongly recommended that my father _____ more exercise regularly instead of sitting still before a computer all day long.
| A．takes | B．take | C．took | D．had taken |