1. They made these experiments____. a) their b) themselves c) ourselves 2. The students have already discussed the questions of ____ practical training. a) them b) they c) their 3. I’ve got ___video cassettes in English. a) any b) something c) some 4. ____engineer working in this field can give you this information. a) any b) no c) some 5. Are there ___ tools in the workshop? a) any b) some c) anything