1. There (be) ............ dramatic improvements in the school facilities in the last three years. 2. Tom said that he (learn)....,....... English in an evening class then. 3. Our teacher was relieved to hear that all of his students (make) ..................................... progress. 4. Mr. Hawk told me that he__would give__me his answer the following day. (give) 5. I suggest ............ these valuable things in high-security places. (put) 6. Traffic jams in most big cities are getting more and more serious, and it’s hard to find a proper __________(solve) 7. Scientists suggested (spend) ..spending..money on research into solar energy. 8. It would be (benefit)...................................................... to build a skytrain system in the city. 9. It is difficult to (sympathetic)…..................…… with a negative people who will do nothing to help themselves. Chia động từ và họ từ ạ