Tom as well as his classmates _____ Japanese in Japan.
| A．are studying | B．have studied | C．studies | D．study |
However, at times this balance in nature is disturbed by human activities, _______ a number of possibly unforeseen effects.
| A．lying in | B．calling in | C．taking in | D．resulting in |
The news that he fought with his coach surprised us, ________?
| A．did he | B．didn’t it | C．didn’t he | D．did it |
It doesn’t matter ________ you take it seriously, for _______ matters is that he can realize it.
| A．whether; that | B．that; what | C．whether; what | D．that; that |
These facts are unimportant in ________, but if you put them together, you may find something unusual.
| A．it | B．them | C．itself | D．themselves |
Mary’s house in Shanghai cost much more than ours in our hometown, though not half______.
| A．much bigger | B．as bigger | C．very big | D．so big |