tests by felin with the online test builder (259 tests)

221. Verb + -ing or to.(2) (41849 candidates)
222. Verb + -ing or to. (1) (20150 candidates)
223. I wish, if only (233085 candidates)
224. Question Words ( 2) (5363 candidates)
225. Question words (1) (41749 candidates)
226. Conditional (first and second) (41810 candidates)
227. Third conditional (49020 candidates)
228. Suffixes (3) (2298 candidates)
229. Suffixes (2) (2288 candidates)
230. Suffixes ( 1) (4526 candidates)
231. Modal verbs 2 (24001 candidates)
232. Past simple or continuous (18724 candidates)
233. Although / in spite of / despite (174939 candidates)
234. A/ an and the (42793 candidates)
235. Countable nouns with a/an and some (24248 candidates)
236. Question tags (4262 candidates)
237. For, since, during, yet, etc (54926 candidates)
238. Hypothetical structures (16925 candidates)
239. Préfixes (1913 candidates)
240. Is or are? (75330 candidates)