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

221. Verb + -ing or to.(2) (41867 candidates)
222. Verb + -ing or to. (1) (20166 candidates)
223. I wish, if only (233237 candidates)
224. Question Words ( 2) (5377 candidates)
225. Question words (1) (41838 candidates)
226. Conditional (first and second) (41916 candidates)
227. Third conditional (49065 candidates)
228. Suffixes (3) (2298 candidates)
229. Suffixes (2) (2288 candidates)
230. Suffixes ( 1) (4528 candidates)
231. Modal verbs 2 (24039 candidates)
232. Past simple or continuous (18737 candidates)
233. Although / in spite of / despite (175065 candidates)
234. A/ an and the (42805 candidates)
235. Countable nouns with a/an and some (24271 candidates)
236. Question tags (4263 candidates)
237. For, since, during, yet, etc (55037 candidates)
238. Hypothetical structures (16927 candidates)
239. Préfixes (1915 candidates)
240. Is or are? (75411 candidates)