He _____ more than 5,000 English words when he entered the university at the age of 15.
30. —Now the weight. Only 115. You’d better put on a few pounds. —Well, actually, I ________ like a horse.
29. I can hardly remember any occasions _______ I get caught in a traffic jam in our town.
28. —Where have you been all day? —I _______ some former classmates and I couldn’t get back until it was dark.
27. The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal.
26. —How much of the foreign expert’s speech have you understood? —Next to nothing. I wish I _______ harder at English.