Experts warn that global warming will cause extreme climate changes including more______ floods, heat waves and droughts.
| A．usual | B．ordinary | C．frequent | D．common |
More and more people prefer jogging in the morning, _______ benefits for health arise from the air rich in oxygen.
| A．which | B．that | C．whose | D．who |
After graduation from college, Joe ______ for a year seeing the country before he went to work in his father’s business.
| A．knocked about | B．knocked over |
| C．knocked down | D．knocked off |
— Dad, we _________ the zoo-trip you promised us last week.
— Sorry my girls. I _______ to take you there this week, but I’ve been too busy.
| A．expect; intend |
| B．had expected; had intended |
| C．are expecting; had intended |
| D．expected; intend |
an important decision more on emotion than on reason, you will regret it sooner or later.
| A．Based | B．Basing | C．Base | D．To base |
What Chinese lawmakers begin to consider is a proposed revision to the country's Food Safety Law, ________ includes mandatory(强制性) labeling of GM food.
| A．one | B．one which | C．one that | D．the one that |