By the time I got up, my mother _______ .
| A．left | B．had left | C．has left | D．is leaving |
Keep your child off drugs,________ it will________ many serious health and behavior problems.
| A．or; point to | B．or; lead to | C．and; point to | D．and; lead to |
A White House plane________ Beijing on March 19, 2014 and US First Lady Michelle Obamastartedher________ visit to China.
| A．reached; seven days | B．landed in; seven-day |
| C．has arrived in; seven-day | D．has got to; seven days |
— How are you today, Kate?
— I feel evennow. I don’t think this medicine is good for me.
| A．badly | B．better | C．well | D．worse |
It is well known to all that the kilogram is the internationalof weight.
| A．position | B．condition | C．conference | D．standard |
I tried several jackets on, butof them looked good on me.
| A．both | B．either | C．none | D．neither |