Every year he ________ to Beijing to visit his teacher.
| A．have come | B．comes | C．came | D．come |
She didn’t ______ work when she had the baby.
| A．give in | B．give out | C．give away | D．give up |
______ the students in our class is 50 and _______ them study very hard.
| A．The number of; the number of | B．A number of ; the number of |
| C．The number of; a number of | D．A number of; a umber of |
She searched all the places where she _____ have left her necklace but it was all in vain.
| A．might | B．would | C．could | D．should |
---- Why don’t you try to do exercise to lose weight?
---- I have tried everything but it has made no _____________.
| A．use | B．result | C．conclusion | D．difference |
Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of electricity, water and food, etc...
| A．referring | B．referred to | C．referring to | D．were referred |