. I asked the tailor to make a small _____ to my trousers because they were too long.
| A．change | B．variation | C．revision | D．alteration |
______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.
| A．Knowing | B．Having known | C．Known | D．To be known |
—What happened to you on your way back to the hotel last night ?
—I lost my way in complete darkness and ,__________ things worse , it began to pour .
| A．making | B．to make | C．having made | D．made |
Comparison may make something appear more beautiful than it is when _________ alone.
| A．to see | B．seeing | C．is seen | D．seen |
—Where is our English teacher?
—She is in the classroom, _____ the exercises _________ the students have done at home.
| A．explaining; / | B．explaining; for |
| C．explained; to | D．explained; from |
Tom does speak Chinese well, but his reading and writing skills leave much _______.
| A．to improve | B．to be improved | C．improving | D．improved |