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

221. Verb + -ing or to.(2) (41830 candidates)
222. Verb + -ing or to. (1) (20143 candidates)
223. I wish, if only (233005 candidates)
224. Question Words ( 2) (5361 candidates)
225. Question words (1) (41736 candidates)
226. Conditional (first and second) (41752 candidates)
227. Third conditional (48975 candidates)
228. Suffixes (3) (2298 candidates)
229. Suffixes (2) (2288 candidates)
230. Suffixes ( 1) (4526 candidates)
231. Modal verbs 2 (23984 candidates)
232. Past simple or continuous (18712 candidates)
233. Although / in spite of / despite (174841 candidates)
234. A/ an and the (42784 candidates)
235. Countable nouns with a/an and some (24236 candidates)
236. Question tags (4261 candidates)
237. For, since, during, yet, etc (54796 candidates)
238. Hypothetical structures (16915 candidates)
239. Préfixes (1906 candidates)
240. Is or are? (75308 candidates)