I didn’t understand ________led him to be late for three times every week.
| A．what it was that | B．it was where that |
| C．how it was that | D．why was it |
162. Many countries are increasing their use of natural gas, wind and other forms of ______.
| A．energy | B．source | C．power | D．Material |
163. _____ you are leaving tomorrow, we can eat dinner together tonight.
| A．For | B．Now that | C．When | D．While |
164. --- Jane, whom would you like to talk with at the end of the lecture?
--- Mary. The lady ________ Miss White.
| A．called herself | B．we call |
| C．being called herself | D．is called |
165. The headmaster ______ a new teacher ______ the students just now.
| A．was introduced; to | B．was introducing; to |
| C．introduced; to | D．introduced; for |
166. Kunming is said to be a city of spring all the year round. But the weather there ______ unpleasant.
| A．should be | B．may be | C．must | D．can be |