Whenever you need help， just call me． I can come at the drop of a hat．（ ）
| A． |
with a hat |
B． |
without a hat |
| C． |
at once |
D． |
at a low speed |
In order to take a pleasant trip to Kunming， Dave emailed me to ask _____．（ ）
| A． |
what was Kunming most famous for |
| B． |
what Kunming was most famous for |
| C． |
whether is summer a good time to come |
| D． |
whether summer is a good time to come |
The _____of the 2019 Beijing International Horticultural Expo（园艺博览会） is "Live Green，Live Better"．（ ）
| A． |
symbol |
B． |
condition |
C． |
theme |
D． |
invention |
Yunnan Museum is such an interesting place that many kids have fun _____ it．（ ）
| A． |
visiting |
B． |
to visit |
C． |
reading |
D． |
to read |
You looked unhappy just now．_____？
I missed the school bus and arrived late for class．（ ）
| A． |
What did you eat for lunch |
| B． |
How was your picnic |
| C． |
What happened to you |
| D． |
How did you go there |