With the development of high technology, more and more new things ________ to the field of IT．
| A．have introduced | B．are being introduced |
| C．were introduced | D．had been introduced |
_______Tom is very good at science, his brother is absolutely hopeless.
| A．When | B．While | C．As | D．If |
The students were_______to learn that the new teaching methodat the meeting would be carried out.
| A．pleased; put forward | B．pleasing; putting forward |
| C．pleased; putting forward | D．pleasing; put forward |
When deeply absorbed in work, _______he often was, he would forget all about eating or sleeping.
| A．where | B．that | C．what | D．as |
Mother told Jim to_______the milk until it boiled and then turn off the gas.
| A．observe | B．watch | C．see | D．examine |
The job is_______I can do myself, so I need some help.
| A．no more than | B．not more than | C．more than | D．less than |