His parents are very concerned about his son at school because he _______moving in his seat.
#103160
A
is always keeping
B
always keeps
C
does keep
D
has always kept
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---What’s wrong with you, Mr. Keller? --- I’ve had a very bad headache for two days. At first, I ______ I caught a cold, but the medicine ______.
#102841
A
thought, hasn’t worked
B
had thought, didn’t work
C
thought, hadn’t worked
D
have thought, hasn’t worked
The company in our city ______ those big investors from the West. 
#102565
A
has a link with
B
has a hand in
C
is in line with
D
is in charge of